#pragma GCC optimize("Ofast") //#pragma GCC target ("sse4") #pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std; //#define int long long typedef long long ll; typedef unsigned long long ul; typedef unsigned int ui; constexpr ll mod = 1000000007; const ll INF = mod * mod; typedef pairP; #define stop char nyaa;cin>>nyaa; #define rep(i,n) for(int i=0;i=0;i--) #define Rep(i,sta,n) for(int i=sta;i=1;i--) #define Rep1(i,sta,n) for(int i=sta;i<=n;i++) #define all(v) (v).begin(),(v).end() typedef pair LP; typedef double ld; typedef pair LDP; const ld eps = 1e-12; const ld pi = acosl(-1.0); ll mod_pow(ll x, ll n, ll m = mod) { if (n < 0) { ll res = mod_pow(x, -n, m); return mod_pow(res, m - 2, m); } if (abs(x) >= m)x %= m; if (x < 0)x += m; ll res = 1; while (n) { if (n & 1)res = res * x % m; x = x * x % m; n >>= 1; } return res; } struct modint { ll n; modint() :n(0) { ; } modint(ll m) :n(m) { if (n >= mod)n %= mod; else if (n < 0)n = (n % mod + mod) % mod; } operator int() { return n; } }; bool operator==(modint a, modint b) { return a.n == b.n; } modint operator+=(modint& a, modint b) { a.n += b.n; if (a.n >= mod)a.n -= mod; return a; } modint operator-=(modint& a, modint b) { a.n -= b.n; if (a.n < 0)a.n += mod; return a; } modint operator*=(modint& a, modint b) { a.n = ((ll)a.n * b.n) % mod; return a; } modint operator+(modint a, modint b) { return a += b; } modint operator-(modint a, modint b) { return a -= b; } modint operator*(modint a, modint b) { return a *= b; } modint operator^(modint a, ll n) { if (n == 0)return modint(1); modint res = (a * a) ^ (n / 2); if (n % 2)res = res * a; return res; } ll inv(ll a, ll p) { return (a == 1 ? 1 : (1 - p * inv(p % a, a)) / a + p); } modint operator/(modint a, modint b) { return a * modint(inv(b, mod)); } modint operator/=(modint& a, modint b) { a = a / b; return a; } //const int max_n = 1 << 18; //modint fact[max_n], factinv[max_n]; //void init_f() { // fact[0] = modint(1); // for (int i = 0; i < max_n - 1; i++) { // fact[i + 1] = fact[i] * modint(i + 1); // } // factinv[max_n - 1] = modint(1) / fact[max_n - 1]; // for (int i = max_n - 2; i >= 0; i--) { // factinv[i] = factinv[i + 1] * modint(i + 1); // } //} //modint comb(int a, int b) { // if (a < 0 || b < 0 || a < b)return 0; // return fact[a] * factinv[b] * factinv[a - b]; //} //modint combP(int a, int b) { // if (a < 0 || b < 0 || a < b)return 0; // return fact[a] * factinv[a - b]; //} bool isp[40000]; vector ps; void init() { fill(isp + 2, isp + 40000, true); for (int i = 2; i < 40000; i++) { if (!isp[i])continue; ps.push_back(i); for (int j = 2*i; j < 40000; j += i) { isp[j] = false; } } } void solve() { int n; cin >> n; while (n % 2 == 0)n /= 2; while (n % 5 == 0)n /= 5; if (n == 1) { cout << 1 << "\n"; return; } int tn = n; int cop = n; vector pp; for (int p : ps) { if (cop % p == 0) { pp.push_back(p); while (cop % p == 0)cop /= p; } } if (cop > 1)pp.push_back(cop); for (int p : pp) { tn = tn / p * (p - 1); } vector vd; ll val = 1; for (int i = 1; i <= 40000; i++) { val = val * 10 % n; if (val % n == 1) { cout << i << "\n"; return; } if (tn % i == 0) { vd.push_back(tn / i); } } sort(all(vd)); for (int d : vd) { ll val = mod_pow(10, d, n); if (val % n == 1) { cout << d << "\n"; return; } } assert(false); } signed main() { ios::sync_with_stdio(false); cin.tie(0); //cout << fixed << setprecision(15); //init_f(); init(); //expr(); int t; cin >> t; rep(i,t) solve(); return 0; }