#include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std; using ll = long long; class range {private: struct I{int x;int operator*(){return x;}bool operator!=(I& lhs){return x ostream& operator<<(ostream& os, const pair& p){ return os << "{" << p.first << ", " << p.second << "}"; } template ostream& operator<<(ostream& os, const vector& obj) { os << "{"; for (const auto& e : obj) os << e << ", "; return os << "}"; } template ostream& operator<<(ostream& os, const set& obj) { os << "set{"; for (const auto& e : obj) os << e << ", "; return os << "}"; } template ostream& operator<<(ostream& os, const map& obj) { os << "map{"; for (const auto& e : obj) os << e << ", "; return os << "}"; } template void take(vector& vec, int n) { vec.resize(n); for (int i = 0; i < n; ++i) cin >> vec[i]; } #ifdef ONLINE_JUDGE #define dump(expr) ; #else #define dump(expr) { cerr << "\033[33m#L" << __LINE__ << ": " << expr << "\033[39m" << endl; } #endif ll power(ll a, ll b, ll mod) { if (b == 0) return 1LL; if (b % 2) return (a * power(a, b - 1, mod)) % mod; else { ll x = power(a, b / 2, mod); return (x * x) % mod; } } namespace solver { template struct In2 { T1 a; T2 b; friend std::istream& operator>>(std::istream& is, In2& obj) { T1 t1; T2 t2; is >> t1 >> t2; obj = {t1, t2}; return is; } }; template struct In3 { T1 a; T2 b; T3 c; friend std::istream& operator>>(std::istream& is, In3& obj) { T1 t1; T2 t2; T3 t3; is >> t1 >> t2 >> t3; obj = {t1, t2, t3}; return is; } }; int t; vector ns; int totient_function(int n) { if (n <= 1) return 0; int ret = 1; for (int k = 2; k * k <= n; ++k) { int e = 0; while (n % k == 0) { n /= k; if (e == 0) ret *= k - 1; else ret *= k; } } return ret * (n - 1); } void read() { cin >> t; take(ns, t); } using RetType = void; RetType run() { for (int n : ns) { while (n % 2 == 0) n /= 2; while (n % 5 == 0) n /= 5; if (n == 1) { cout << 1 << endl; continue; } int phi = totient_function(n); dump(n << " " << phi); int res = n; for (int k = 1; k * k <= phi; ++k) if (phi % k == 0) { if (power(10, k, n) == 1) res = min(res, k); if (power(10, phi / k, n) == 1) res = min(res, phi / k); } cout << res << endl; } } } // namespace template void run(F f) { if constexpr (std::is_same_v) f(); else cout << f() << endl; } int main(int argc, char** argv) { cerr << fixed << setprecision(12); cout << fixed << setprecision(12); int testcase = 1; if (argc > 1) testcase = atoi(argv[1]); while (testcase--) { solver::read(); } run(solver::run); }