#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define rep(x, s, t) for(llint (x) = (s); (x) <= (t); (x)++) #define chmin(x, y) (x) = min((x), (y)) #define chmax(x, y) (x) = max((x), (y)) #define all(x) (x).begin(),(x).end() #define inf 1e18 using namespace std; typedef long long llint; typedef long long ll; typedef pair P; ll T; ll n, mod; llint modpow(llint a, llint n) { if(n == 0) return 1; if(n % 2){ return ((a%mod) * (modpow(a, n-1)%mod)) % mod; } else{ return modpow((a*a)%mod, n/2) % mod; } } int main(void) { ios::sync_with_stdio(0); cin.tie(0); cin >> T; while(T--){ cin >> n; while(n % 5 == 0) n /= 5; while(n % 2 == 0) n /= 2; if(n == 1){ cout << 1 << endl; continue; } int res = n, t = n; for(int i = 2; i*i <= t; i++){ if(t % i == 0){ res = res / i * (i-1); for(; t % i == 0; t /= i); } } if(t != 1) res = res / t * (t-1); ll ans = inf; mod = n; for(llint i = 1; i*i <= n; i++){ if(res % i == 0){ if(modpow(10, i) == 1) chmin(ans, i); if(modpow(10, res/i) == 1) chmin(ans, res/i); } } cout << ans << endl; } return 0; }