#include <bits/stdc++.h>
using uint = unsigned int;
using ll = long long;
using ull = unsigned long long;
using ld = long double;
using LL = __int128_t;
using ULL = __uint128_t;
template<typename T> using max_heap = std::priority_queue<T>;
template<typename T> using min_heap = std::priority_queue<T, std::vector<T>, std::greater<T>>;
template<typename T> constexpr T inverse(const T a, const T mod) { return a == 1 ? T{1} : ((a - inverse(mod % a, a)) * mod + 1) / a; }
template<typename T> constexpr std::pair<T, T> extgcd(const T a, const T b)
{
    if (a == 0) { return -1 / b; }
    if (b == 0) { return 1 / a; }
    const T x = inverse(a, b), y = (a * x - 1) / b;
    return {x, y};
}
template<typename T, typename V>
inline bool miller_rabin(const T& n, const std::vector<T>& as)
{
    auto pow = [&](auto&& self, const V& a, const T k) -> V {
        if (k == 0) { return 1; }
        if (k % 2 == 0) {
            return self(self, (a * a) % V(n), k / 2);
        } else {
            return (self(self, a, k - 1) * a) % V(n);
        }
    };
    T d = n - 1;
    for (; (d & 1) == 0; d >>= 1) {}
    for (const T& a : as) {
        if (n <= a) { break; }
        T s = d;
        V x = pow(pow, a, s);
        while (x != 1 and x != n - 1 and s != n - 1) {
            (x *= x) %= V(n);
            s *= 2;
        }
        if (x != n - 1 and s % 2 == 0) { return false; }
    }
    return true;
}
inline bool is_prime(const ull n)
{
    if (n % 2 == 0) { return n == 2; }
    if (n < (1ULL << 32)) {
        return miller_rabin<uint, ull>((uint)n, std::vector<uint>{2, 7, 61});
    } else {
        return miller_rabin<ull, __uint128_t>(n, std::vector<ull>{2, 325, 9375, 28178, 450775, 9780504});
    }
}
template<typename T, typename V = T>
T pollard_rho(const T n)
{
    if (n % 2 == 0) { return 2; }
    if (is_prime(n)) { return n; }
    for (T c = 1; c < n; c++) {
        if (c == n - 2) { continue; }
        auto f = [&](const T x) -> T { return T((V(x) * V(x) + V(c)) % V(n)); };
        T x = 2, y = 2, d = 1;
        while (d == 1) {
            x = f(x), y = f(f(y));
            d = std::gcd(std::max(x, y) - std::min(x, y), n);
        }
        if (d != n) { return d; }
    }
    return n;
}
std::map<ull, int> prime_factors(const ull n_)
{
    std::map<ull, int> ans;
    auto factor = [&](auto&& self, const ull n) -> void {
        if (n == 1) { return; }
        const ull p = (n < (1ULL << 32)) ? (ull)pollard_rho<uint, ull>((uint)n) : pollard_rho<ull, __uint128_t>(n);
        if (p == n) {
            ans[p]++;
            return;
        }
        self(self, p), self(self, n / p);
    };
    factor(factor, n_);
    return ans;
}
template<typename mint>
mint mod_nthroot(mint A, ull k)
{
    const ull P = mint::mod;
    const ull PMAX = std::pow(P, 0.25);
    if (A == 0) { return 0; }
    if (k == 0) { return A; }
    const ull g = std::gcd(P - 1, k);
    if (A.pow((P - 1) / g)() != 1) { return 0; }
    A = A.pow(inverse<ULL>(k / g, (P - 1) / g));
    if (g == 1) { return A; }
    const auto fs = prime_factors(g);
    for (const auto& [p, e] : fs) {
        if (p > 2 * PMAX) { break; }
        ull pe = 1;
        for (int i = 0; i < e; i++) { pe *= p; }
        ull q = P - 1, Q = 0;
        while (q % p == 0) { q /= p, Q++; }
        mint Eraser = 1;
        const ull h = (P - 1) / p;
        for (mint Z = 2;; Z += 1) {
            if (Z.pow(h) != 1) {
                Eraser = Z.pow(q);
                break;
            }
        }
        const ull y = pe - inverse<ULL>(q, pe), z = ((ULL)y * q + 1) / (ULL)pe;
        mint Error = A.pow((ULL)y * q);
        mint pEraser = Eraser;
        for (ull i = 0; i < Q - 1; i++) { pEraser = pEraser.pow(p); }
        const mint ipEraser = pEraser.inv();
        const ull M = std::max(1ULL, (ull)(std::sqrt(p) * std::sqrt(q - e))), B = std::max(1ULL, ((ull)p - 1) / M);
        std::map<ull, ull> memo;
        {
            const mint ppEraser = pEraser.pow(B);
            mint prod = 1;
            for (ull i = 0; i < p; i += B, prod *= ppEraser) {
                if (memo[prod()]) { break; }
                memo[prod()] = i;
            }
        }
        mint X = A.pow(z);
        while (Error() != 1) {
            ull l = 0;
            mint pError = Error;
            for (ull i = 0; i < Q; i++) {
                const auto npError = pError.pow(p);
                if (npError == 1) {
                    l = Q - (i + 1);
                    break;
                }
                pError = npError;
            }
            ull c = -1;
            {
                mint small = pError.inv();
                for (ull j = 0; j < B; j++, small *= ipEraser) {
                    if (memo.count(small())) {
                        const ull i = memo.at(small());
                        c = i + j;
                        break;
                    }
                }
            }
            auto pEraser2 = Eraser.pow(c);
            for (ull i = 0; i < l - e; i++) { pEraser2 = pEraser2.pow(p); }
            X *= pEraser2, Error *= pEraser2.pow(pe);
        }
        A = X;
    }
    return A;
}
struct modinfo
{
    constexpr modinfo(const uint mod_, const uint root_, const uint max2p_) : mod{mod_}, root{root_}, max2p{max2p_} {}
    constexpr modinfo() : mod{}, root{}, max2p{} {}
    void set_mod(const uint mod_) { mod = mod_; }
    void set_root(const uint root_) { root = root_; }
    void set_max2p(const uint max2p_) { max2p = max2p_; }
    uint mod, root, max2p;
};
template<const modinfo& info>
class modint
{
public:
    static constexpr const uint& mod = info.mod;
    static constexpr const uint& root = info.root;
    static constexpr const uint& max2p = info.max2p;
    constexpr modint() : m_val{0} {}
    constexpr modint(const ll v) : m_val{normll(v)} {}
    constexpr modint(const modint& m) = default;
    constexpr void set_raw(const uint v) { m_val = v; }
    constexpr modint& operator=(const modint& m) { return m_val = m(), (*this); }
    constexpr modint& operator=(const ll v) { return m_val = normll(v), (*this); }
    constexpr modint operator+() const { return *this; }
    constexpr modint operator-() const { return modint{0} - (*this); }
    constexpr modint& operator+=(const modint& m) { return m_val = norm(m_val + m()), *this; }
    constexpr modint& operator-=(const modint& m) { return m_val = norm(m_val + mod - m()), *this; }
    constexpr modint& operator*=(const modint& m) { return m_val = normll((ll)m_val * (ll)m() % (ll)mod), *this; }
    constexpr modint& operator/=(const modint& m) { return *this *= m.inv(); }
    constexpr modint& operator+=(const ll val) { return *this += modint{val}; }
    constexpr modint& operator-=(const ll val) { return *this -= modint{val}; }
    constexpr modint& operator*=(const ll val) { return *this *= modint{val}; }
    constexpr modint& operator/=(const ll val) { return *this /= modint{val}; }
    constexpr modint operator+(const modint& m) const { return modint{*this} += m; }
    constexpr modint operator-(const modint& m) const { return modint{*this} -= m; }
    constexpr modint operator*(const modint& m) const { return modint{*this} *= m; }
    constexpr modint operator/(const modint& m) const { return modint{*this} /= m; }
    constexpr modint operator+(const ll v) const { return *this + modint{v}; }
    constexpr modint operator-(const ll v) const { return *this - modint{v}; }
    constexpr modint operator*(const ll v) const { return *this * modint{v}; }
    constexpr modint operator/(const ll v) const { return *this / modint{v}; }
    constexpr bool operator==(const modint& m) const { return m_val == m(); }
    constexpr bool operator!=(const modint& m) const { return not(*this == m); }
    constexpr friend modint operator+(const ll v, const modint& m) { return modint{v} + m; }
    constexpr friend modint operator-(const ll v, const modint& m) { return modint{v} - m; }
    constexpr friend modint operator*(const ll v, const modint& m) { return modint{v} * m; }
    constexpr friend modint operator/(const ll v, const modint& m) { return modint{v} / m; }
    friend std::istream& operator>>(std::istream& is, modint& m)
    {
        ll v;
        return is >> v, m = v, is;
    }
    friend std::ostream& operator<<(std::ostream& os, const modint& m) { return os << m(); }
    constexpr uint operator()() const { return m_val; }
    constexpr modint pow(ull n) const
    {
        modint ans = 1;
        for (modint x = *this; n > 0; n >>= 1, x *= x) {
            if (n & 1ULL) { ans *= x; }
        }
        return ans;
    }
    constexpr modint inv() const { return pow(mod - 2); }
    modint sinv() const { return sinv(m_val); }
    static modint fact(const uint n)
    {
        static std::vector<modint> fs{1, 1};
        for (uint i = (uint)fs.size(); i <= n; i++) { fs.push_back(fs.back() * i); }
        return fs[n];
    }
    static modint ifact(const uint n)
    {
        static std::vector<modint> ifs{1, 1};
        for (uint i = (uint)ifs.size(); i <= n; i++) { ifs.push_back(ifs.back() * sinv(i)); }
        return ifs[n];
    }
    static modint perm(const int n, const int k) { return k > n or k < 0 ? modint{0} : fact(n) * ifact(n - k); }
    static modint comb(const int n, const int k) { return k > n or k < 0 ? modint{0} : fact(n) * ifact(n - k) * ifact(k); }
private:
    static constexpr uint norm(const uint x) { return x < mod ? x : x - mod; }
    static constexpr uint normll(const ll x) { return norm(uint(x % (ll)mod + (ll)mod)); }
    static modint sinv(const uint n)
    {
        static std::vector<modint> is{1, 1};
        for (uint i = (uint)is.size(); i <= n; i++) { is.push_back(-is[mod % i] * (mod / i)); }
        return is[n];
    }
    uint m_val;
};
constexpr modinfo modinfo_1000000007 = {1000000007, 5, 1};
constexpr modinfo modinfo_998244353 = {998244353, 3, 23};
using modint_1000000007 = modint<modinfo_1000000007>;
using modint_998244353 = modint<modinfo_998244353>;
struct modinfo64
{
    constexpr modinfo64() : mod{} {}
    constexpr modinfo64(const ull mod_) : mod{mod_} {}
    void set_mod(const ull mod_) { mod = mod_; }
    ull mod;
};
template<const modinfo64& info>
class modint64
{
public:
    static constexpr const ull& mod = info.mod;
    constexpr modint64() : m_val{0} {}
    constexpr modint64(const ll v) : m_val{normll(v)} {}
    constexpr modint64(const modint64& m) = default;
    constexpr void set_raw(const ull v) { m_val = v; }
    constexpr modint64& operator=(const modint64& m) { return m_val = m(), (*this); }
    constexpr modint64& operator=(const ll v) { return m_val = normll(v), (*this); }
    constexpr modint64 operator+() const { return *this; }
    constexpr modint64 operator-() const { return modint64{0} - (*this); }
    constexpr modint64& operator+=(const modint64& m) { return m_val = norm(m_val + m()), *this; }
    constexpr modint64& operator-=(const modint64& m) { return m_val = norm(m_val + mod - m()), *this; }
    constexpr modint64& operator*=(const modint64& m) { return m_val = normll((LL)m_val * (LL)m() % (LL)mod), *this; }
    constexpr modint64& operator/=(const modint64& m) { return *this *= m.inv(); }
    constexpr modint64& operator+=(const ll val) { return *this += modint64{val}; }
    constexpr modint64& operator-=(const ll val) { return *this -= modint64{val}; }
    constexpr modint64& operator*=(const ll val) { return *this *= modint64{val}; }
    constexpr modint64& operator/=(const ll val) { return *this /= modint64{val}; }
    constexpr modint64 operator+(const modint64& m) const { return modint64{*this} += m; }
    constexpr modint64 operator-(const modint64& m) const { return modint64{*this} -= m; }
    constexpr modint64 operator*(const modint64& m) const { return modint64{*this} *= m; }
    constexpr modint64 operator/(const modint64& m) const { return modint64{*this} /= m; }
    constexpr modint64 operator+(const ll v) const { return *this + modint64{v}; }
    constexpr modint64 operator-(const ll v) const { return *this - modint64{v}; }
    constexpr modint64 operator*(const ll v) const { return *this * modint64{v}; }
    constexpr modint64 operator/(const ll v) const { return *this / modint64{v}; }
    constexpr bool operator==(const modint64& m) const { return m_val == m(); }
    constexpr bool operator!=(const modint64& m) const { return not(*this == m); }
    constexpr friend modint64 operator+(const ll v, const modint64& m) { return modint64{v} + m; }
    constexpr friend modint64 operator-(const ll v, const modint64& m) { return modint64{v} - m; }
    constexpr friend modint64 operator*(const ll v, const modint64& m) { return modint64{v} * m; }
    constexpr friend modint64 operator/(const ll v, const modint64& m) { return modint64{v} / m; }
    friend std::istream& operator>>(std::istream& is, modint64& m)
    {
        ll v;
        return is >> v, m = v, is;
    }
    friend std::ostream& operator<<(std::ostream& os, const modint64& m) { return os << m(); }
    constexpr ull operator()() const { return m_val; }
    constexpr modint64 pow(ULL n) const
    {
        modint64 ans = 1;
        for (modint64 x = *this; n > 0; n >>= 1, x *= x) {
            if (n & ULL{1}) { ans *= x; }
        }
        return ans;
    }
    constexpr modint64 inv() const { return pow(mod - 2); }
    modint64 sinv() const { return sinv(m_val); }
    static modint64 fact(const uint n)
    {
        static std::vector<modint64> fs{1, 1};
        for (uint i = (uint)fs.size(); i <= n; i++) { fs.push_back(fs.back() * i); }
        return fs[n];
    }
    static modint64 ifact(const uint n)
    {
        static std::vector<modint64> ifs{1, 1};
        for (uint i = (uint)ifs.size(); i <= n; i++) { ifs.push_back(ifs.back() * sinv(i)); }
        return ifs[n];
    }
    static modint64 perm(const int n, const int k) { return k > n or k < 0 ? modint64{0} : fact(n) * ifact(n - k); }
    static modint64 comb(const int n, const int k) { return k > n or k < 0 ? modint64{0} : fact(n) * ifact(n - k) * ifact(k); }
private:
    static constexpr ull norm(const ull x) { return x < mod ? x : x - mod; }
    static constexpr ull normll(const ll x) { return norm(ull(x % (ll)mod + (ll)mod)); }
    static modint64 sinv(const uint n)
    {
        static std::vector<modint64> is{1, 1};
        for (uint i = (uint)is.size(); i <= n; i++) { is.push_back(-is[mod % i] * (mod / i)); }
        return is[n];
    }
    ull m_val;
};
class printer
{
public:
    printer()
    {
        for (int i = 0; i < 10000; i++) {
            for (int j = i, t = 3; t >= 0; t--, j /= 10) { m_dict[i * 4 + t] = (j % 10) + '0'; }
        }
    }
    ~printer() { flush(); }
    template<typename... Args> int ln(const Args&... args) { return dump(args...), put_char('\n'), 0; }
    template<typename... Args> int el(const Args&... args) { return dump(args...), put_char('\n'), flush(), 0; }
private:
    using ll = long long;
    using ull = unsigned long long;
    static constexpr ull TEN(const int d) { return d == 0 ? 1ULL : TEN(d - 1) * 10ULL; }
    void flush() { fwrite(m_memory, 1, m_tail, stdout), m_tail = 0; }
    void put_char(const char c) { m_memory[m_tail++] = c; }
    static constexpr int dn(const ull x)
    {
        return x < TEN(10)
                   ? x < TEN(5)
                         ? x < TEN(2)
                               ? x < TEN(1) ? 1 : 2
                               : x < TEN(3) ? 3 : x < TEN(4) ? 4 : 5
                         : x < TEN(7)
                               ? x < TEN(6) ? 6 : 7
                               : x < TEN(8) ? 8 : x < TEN(9) ? 9 : 10
                   : x < TEN(14)
                         ? x < TEN(12)
                               ? x < TEN(11) ? 11 : 12
                               : x < TEN(13) ? 13 : 14
                         : x < TEN(16)
                               ? x < TEN(15) ? 15 : 16
                               : x < TEN(17) ? 17 : x < TEN(18) ? 18 : 19;
    }
    template<typename T>
    void dump(T v)
    {
        if (C - m_tail < 50) { flush(); }
        if (v < 0) { put_char('-'), v = -v; }
        const auto d = dn(v);
        int i = d - 4;
        for (i = d - 4; i >= 0; i -= 4, v /= 10000) { memcpy(m_memory + m_tail + i, m_dict + (v % 10000) * 4, 4); }
        memcpy(m_memory + m_tail, m_dict + v * 4 - i, i + 4);
        m_tail += d;
    }
    template<typename T>
    void dump(const std::vector<T>& vs)
    {
        for (int i = 0; i < (int)vs.size(); i++) {
            if (i > 0) { put_char(' '); }
            dump(vs[i]);
        }
    }
    template<typename T>
    void dump(const std::vector<std::vector<T>>& vss)
    {
        for (int i = 0; i < (int)vss.size(); i++) {
            if (i > 0) { put_char('\n'); }
            dump(vss[i]);
        }
    }
    template<typename T, typename... Args> void dump(const T& v, const Args&... args) { return dump(v), put_char(' '), dump(args...), void(0); }
    static constexpr int C = 1 << 18;
    int m_tail = 0;
    char m_memory[C];
    char m_dict[10000 * 4];
} out;
class scanner
{
public:
    scanner() {}
    template<typename T>
    T val()
    {
        if (m_tail - m_head < 40) { disk_read(); }
        char c = get_char();
        const bool neg = (c == '-');
        if (neg) { c = get_char(); }
        T ans = 0;
        while (c >= '0') {
            ans = ans * T{10} + (c - '0');
            c = get_char();
        }
        return (neg ? -ans : ans);
    }
    template<typename T> T val(const T offset) { return val<T>() - offset; }
    template<typename T> std::vector<T> vec(const int n)
    {
        return make_v<T>(n, [this]() { return val<T>(); });
    }
    template<typename T> std::vector<T> vec(const int n, const T offset)
    {
        return make_v<T>(n, [this, offset]() { return val<T>(offset); });
    }
    template<typename T> std::vector<std::vector<T>> vvec(const int n0, const int n1)
    {
        return make_v<std::vector<T>>(n0, [this, n1]() { return vec<T>(n1); });
    }
    template<typename T> std::vector<std::vector<T>> vvec(const int n0, const int n1, const T offset)
    {
        return make_v<std::vector<T>>(n0, [this, n1, offset]() { return vec<T>(n1, offset); });
    }
    template<typename... Args> auto tup() { return std::tuple<std::decay_t<Args>...>{val<Args>()...}; }
    template<typename... Args> auto tup(const Args&... offsets) { return std::tuple<std::decay_t<Args>...>{val<Args>(offsets)...}; }
private:
    template<typename T, typename F>
    std::vector<T> make_v(const int n, F f)
    {
        std::vector<T> ans;
        for (int i = 0; i < n; i++) { ans.push_back(f()); }
        return ans;
    }
    char get_char() { return m_memory[m_head++]; }
    void disk_read()
    {
        std::copy(m_memory + m_head, m_memory + m_tail, m_memory);
        m_tail -= m_head, m_head = 0;
        m_tail += fread(m_memory + m_tail, 1, C - m_tail, stdin);
    }
    static constexpr int C = 1 << 18;
    int m_head = 0, m_tail = 0;
    char m_memory[C];
} in;
constexpr int popcount(const ull v) { return v ? __builtin_popcountll(v) : 0; }
constexpr int log2p1(const ull v) { return v ? 64 - __builtin_clzll(v) : 0; }
constexpr int lsbp1(const ull v) { return __builtin_ffsll(v); }
constexpr int clog(const ull v) { return v ? log2p1(v - 1) : 0; }
constexpr ull ceil2(const ull v) { return 1ULL << clog(v); }
constexpr ull floor2(const ull v) { return v ? (1ULL << (log2p1(v) - 1)) : 0ULL; }
constexpr bool btest(const ull mask, const int ind) { return (mask >> ind) & 1ULL; }
template<typename Rng>
class rng_base
{
public:
    using result_type = typename Rng::result_type;
    static constexpr result_type min() { return Rng::min(); }
    static constexpr result_type max() { return Rng::max(); }
    rng_base() : rng_base(std::random_device{}()) {}
    rng_base(const std::random_device::result_type seed) : m_rng(seed) {}
    ~rng_base() = default;
    result_type operator()() { return m_rng(); }
    result_type val(const result_type max = std::numeric_limits<result_type>::max())
    {
        if (max == std::numeric_limits<result_type>::max()) { return m_rng(); }
        const result_type mask = ceil2(max + 1) - 1;
        while (true) {
            const result_type ans = m_rng() & mask;
            if (ans <= max) { return ans; }
        }
    }
    template<typename T> T val(const T min, const T max) { return min + T(val(max - min)); }
    operator bool() { return val<bool>(0, 1); }
    template<typename T> std::pair<T, T> pair(const T min, const T max) { return std::minmax(val<T>(min, max), val<T>(min, max)); }
    template<typename T> std::vector<T> vec(const int n, const T min, const T max)
    {
        std::vector<T> vs(n);
        for (auto& v : vs) { v = val<T>(min, max); }
        return vs;
    }
private:
    Rng m_rng;
};
rng_base<std::mt19937> rng;
rng_base<std::mt19937_64> rng64;
modinfo info;
using mint = modint<info>;
modinfo64 info64;
using mint64 = modint64<info64>;
int main()
{
    const int T = in.val<int>();
    for (int t = 0; t < T; t++) {
        const auto [P, K, A] = in.tup<ull, ull, ull>();
        if (P < (1ULL << 31)) {
            info.set_mod(P);
            const mint ans = mod_nthroot(mint{(ll)A}, K);
            if (ans.pow(K) == A) {
                out.ln(ans());
            } else {
                out.ln(-1);
            }
        } else {
            info64.set_mod(P);
            const mint64 ans = mod_nthroot(mint64{(ll)A}, K);
            if (ans.pow(K) == A) {
                out.ln(ans());
            } else {
                out.ln(-1);
            }
        }
    }
    return 0;
}