#include using namespace std; #define int long long #define endl "\n" const int N = 100010; // 筛法求莫比乌斯函数(枚举约数) int mu[N], sum[N]; // sum[N]:梅滕斯函数,也就是莫比乌斯函数的前缀和 int primes[N], cnt; bool st[N]; void get_mobius(int n) { mu[1] = 1; for (int i = 2; i <= n; i++) { if (!st[i]) { primes[cnt++] = i; mu[i] = -1; } for (int j = 0; primes[j] <= n / i; j++) { int t = primes[j] * i; st[t] = true; if (i % primes[j] == 0) { mu[t] = 0; break; } mu[t] = -mu[i]; } } // 维护u(x)前缀和:梅滕斯函数 for (int i = 1; i <= n; i++) sum[i] = sum[i - 1] + mu[i]; } int check(int g) { int res = 0; for (int i = 1; i * i <= g; i++) res = res + mu[i] * (g / i / i); return res; } signed main() { get_mobius(N - 1); int t, k; cin >> t; while (t--) { cin >> k; int l = 1, r = 2e9, mid, vt; while (l <= r) { mid = (l + r) / 2; vt = check(mid); if (vt < k) l = mid + 1; else r = mid - 1; } cout << r + 1 << endl; } }