#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for(int i = 0; i < n; i++)
#define rep2(i, x, n) for(int i = x; i <= n; i++)
#define rep3(i, x, n) for(int i = x; i >= n; i--)
#define each(e, v) for(auto &e: v)
#define pb push_back
#define eb emplace_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define sz(x) (int)x.size()
using ll = long long;
using pii = pair<int, int>;
using pil = pair<int, ll>;
using pli = pair<ll, int>;
using pll = pair<ll, ll>;
#define pq(type, name) priority_queue<type> name
#define iq(type, name) priority_queue<type, vector<type>, greater<type>> name
const int inf = (1<<30)-1;
const ll INF = (1LL<<60)-1;
const double pi = acos(-1.0);
const double EPS = 1e-10;
template<typename T> bool chmax(T &x, const T &y){
    if(x < y) {x = y; return true;}
    return false;
}
template<typename T> bool chmin(T &x, const T &y){
    if(x > y) {x = y; return true;}
    return false;
}
void in() {}
template<typename Head, typename ...Tail> void in(Head &&head, Tail &&...tail){
    cin >> head;
    in(forward<Tail>(tail)...);
}
void out() {cout << '\n';}
template<typename Head, typename ...Tail> void out(Head &&head, Tail &&...tail){
    cout << head << ' ';
    out(forward<Tail>(tail)...);
}
void outn() {}
template<typename Head, typename ...Tail> void outn(Head &&head, Tail &&...tail){
    cout << head << '\n';
    outn(forward<Tail>(tail)...);
}
template<typename T, typename U> void in(pair<T, U> &p){
    cin >> p.first >> p.second;
}
template<typename T, typename U> void out(pair<T, U> p){
    cout << p.first << ' ' << p.second << '\n';
}
using vi = vector<int>;
using vll = vector<ll>;
#define vec1(type, name, ...) vector<type> name(__VA_ARGS__)
#define VEC1(type, ...) vector<type>(__VA_ARGS__)
#define vec2(type, name, a, ...) vector<vector<type>> name(a, VEC1(type, __VA_ARGS__))
#define VEC2(type, a, ...) vector<vector<type>>(a, VEC1(type, __VA_ARGS__))
#define vec3(type, name, a, b, ...) vector<vector<vector<type>>> name(a, VEC2(type, b, __VA_ARGS__))
#define VEC3(type, a, b, ...) vector<vector<vector<type>>>(a, VEC2(type, b, __VA_ARGS__))
#define vec4(type, name, a, b, c, ...) vector<vector<vector<vector<type>>>> name(a, VEC3(type, b, c, __VA_ARGS__))
#define VEC4(type, a, b, c, ...) vector<vector<vector<vector<type>>>>(a, VEC3(type, b, c, __VA_ARGS__))
#define vec5(type, name, a, b, c, d, ...) vector<vector<vector<vector<vector<type>>>>> name(a, VEC4(type, b, c, d, __VA_ARGS__))
#define VEC5(type, a, b, c, d, ...) vector<vector<vector<vector<vector<type>>>>>(a, VEC4(type, b, c, d, __VA_ARGS__))
template<typename T> void vin(vector<T> &a){
    rep(i, sz(a)) cin >> a[i];
}
template<typename T> void vout(const vector<T> &a){
    for(auto &e: a) cout << e << ' ';
    cout << '\n';
}
template<typename T> void voutn(const vector<T> &a){
    for(auto &e: a) cout << e << '\n';
}
template<typename T> void unique(vector<T> &a){
    sort(all(a)), a.erase(unique(all(a)), a.end());
}
vector<int> iota(int n){
    vector<int> ret(n);
    iota(all(ret), 0);
    return ret;
}
template<typename T> vector<int> iota(const vector<T> &a, bool greater = false){
    vector<int> ret = iota(sz(a));
    sort(all(ret), [&](int i, int j){
        return (a[i] < a[j])^greater;
    });
    return ret;
}
struct io_setup{
    io_setup(){
        ios_base::sync_with_stdio(false);
        cin.tie(NULL);
        cout << fixed << setprecision(15);
    }
} io_setup;
#define VEC(type, name, n) vector<type> name(n); vin(name)
#define INT(...) int __VA_ARGS__; in(__VA_ARGS__)
#define LL(...) ll __VA_ARGS__; in(__VA_ARGS__)
#define CHAR(...) char __VA_ARGS__; in(__VA_ARGS__)
#define STR(...) string __VA_ARGS__; in(__VA_ARGS__)
#define DBL(...) double __VA_ARGS__; in(__VA_ARGS__)
const int MOD = 1000000007;
//const int MOD = 998244353;

struct Random_Number_Generator{
    mt19937_64 mt;

    Random_Number_Generator() : mt(chrono::steady_clock::now().time_since_epoch().count()) {}

    int64_t operator () (int64_t l, int64_t r){
        uniform_int_distribution<int64_t> dist(l, r-1);
        return dist(mt);
    }

    int64_t operator () (int64_t r){ 
        return (*this)(0, r);
    }
};

ll modpow(ll x, ll n, const int &m){
    ll ret = 1;
    while(n){
        if(n&1) ret *= x, ret %= m;
        x *= x, x %= m;
        n >>= 1;
    }
    return ret;
}

template<typename T> T Euler_Totient(T m){ //オイラーのφ関数(xとmが互いに素ならば、x^φ(m)≡1(mod m))
    T ret = m;
    for(T i = 2; i*i <= m; i++){
        if(m%i == 0) ret /= i, ret *= i-1;
        while(m%i == 0) m /= i;
    }
    if(m > 1) ret /= m, ret *= m-1;
    return ret;
}

int modlog(const int &x, ll y, const int &m){ //x^k=y(mod m)となる最小の非負整数k(xとmは互いに素)
    unordered_map<int, int> mp;
    int n = 0; ll now = 1;
    for(; n*n < m; n++){
        if(!mp.count(now)) mp[now] = n;
        now *= x, now %= m;
    }
    now = modpow(now, Euler_Totient(m)-1, m);
    rep(i, n){
        if(mp.count(y)) return n*i+mp[y];
        y *= now, y %= m;
    }
    return -1;
}

template<typename T> T order(T x, const T &m){ //x^k=1(mod m)となる最小の正整数(xとmは互いに素)
    T n = Euler_Totient(m);
    vector<T> ds;
    for(T i = 1; i*i <= n; i++){
        if(n%i == 0) ds.pb(i), ds.pb(n/i);
    }
    sort(all(ds));
    for(auto &e: ds){
        if(modpow(x, e, m) == 1) return e;
    }
    return -1;
}

template<typename T> T primitive_root(T m){ //素数mの原始根
    vector<T> ds;
    for(T i = 1; i*i <= m-1; i++){
        if((m-1)%i == 0) ds.pb(i), ds.pb((m-1)/i);
    }
    sort(all(ds));
    Random_Number_Generator rnd;
    while(true){
        T r = rnd(1, m);
        for(auto &e: ds){
            if(e == m-1) return r;
            if(modpow(r, e, m) == 1) break;
        }
    }
}

int main(){
    INT(T);
    ll m = Euler_Totient(MOD-1);
    while(T--){
        LL(X, K);
        ll t = modpow(K, m-1, MOD-1);
        out(modpow(X, t, MOD));
    }
}