func_code_string: #include <bits/stdc++.h>   using namespace std;   long long int n;   int main() {     cin >> n;     long long int cnt = 0, c;     for (long long int i = 2; i <= sqrt(n); i++) {       if (n % i == 0) cnt++;     }     if (cnt == 0) {       cout << n;       goto skip;     }     for (long long int i = 2; i <= sqrt(n); i++)       if (n % i == 0) {         c = i;         break;       }     while (n % c == 0) {       n /= c;     }     if (n == 1) {       cout << c;     } else {       cout << 1;     }   skip:;     return 0;   }   