#include 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 elif else if #define sp(x) fixed << setprecision(x) #define pb push_back #define eb emplace_back #define all(x) x.begin(), x.end() #define sz(x) (int)x.size() using ll = long long; using pii = pair; using pil = pair; using pli = pair; using pll = pair; const int MOD = 1000000007; //const int MOD = 998244353; const int inf = (1<<30)-1; const ll INF = (1LL<<60)-1; const double pi = acos(-1.0); const double EPS = 1e-10; template bool chmax(T &x, const T &y) {return (x < y)? (x = y, true) : false;}; template bool chmin(T &x, const T &y) {return (x > y)? (x = y, true) : false;}; 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 dist(l, r-1); return dist(mt); } int64_t operator () (int64_t r){ return (*this)(0, r); } }; template struct Modulo{ Modulo() {}; T pow(T x, ll n, const T &m) const{ T ret = 1; while(n){ if(n&1) ret *= x, ret %= m; x *= x, x %= m; n >>= 1; } return ret; } T Euler_Totient(T m) const{ //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-1, ret /= i; while(m%i == 0) m /= i; } if(m > 1) ret *= m-1, ret /= m; return ret; } T log(const T &x, T y, const T &m) const{ //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 mp; T n = 0, now = 1; for(; n*n < m; n++){ if(!mp.count(now)) mp[now] = n; now *= x, now %= m; } now = pow(now, Euler_Totient(m)-1, m); rep(i, n){ if(mp.count(y) && n*i+mp[y] > 0) return n*i+mp[y]; y *= now, y %= m; } return -1; } T primitive_root(T m){ //素数mの原始根 vector 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(pow(r, e, m) == 1) break; } } } }; template struct Prime{ Prime() {} vector divisors(const T &n) const{ vector ret; for(T i = 1; i*i <= n; i++){ if(n%i == 0){ ret.pb(i); if(i*i != n) ret.pb(n/i); } } //sort(all(ret)); return ret; } vector> prime_factor(T n) const{ vector> ret; for(T i = 2; i*i <= n; i++){ int cnt = 0; while(n%i == 0) cnt++, n /= i; if(cnt > 0) ret.eb(i, cnt); } if(n > 1) ret.eb(n, 1); return ret; } bool is_prime(const T &n) const{ if(n == 1) return false; for(T i = 2; i*i <= n; i++){ if(n%i == 0) return false; } return true; } vector Eratosthenes(const int &n) const{ vector ret(n+1, true); if(n >= 0) ret[0] = false; if(n >= 1) ret[1] = false; for(int i = 2; i*i <= n; i++){ if(!ret[i]) continue; for(int j = 2; i*j <= n; j++) ret[i*j] = false; } return ret; } }; int main(){ int T; cin >> T; Prime P; Modulo M; while(T--){ int N; cin >> N; if(N == 1) {cout << 1 << endl; continue;} int m = 2*N-1; int n = M.Euler_Totient(m); vector ds = P.divisors(n); int ans = inf; for(auto &e: ds){ if(M.pow(2, e, m) == 1) chmin(ans, e); } cout << ans << endl; } }