func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     cout.tie(NULL);     int T;     cin >> T;     while (T-- > 0) {       long long n, k;       cin >> n >> k;       int m;       for (m = 2; m <= n; m++) {         if (n % m == 0) break;       }       long long ans = n + m + (k - 1) * 2;       cout << ans << endl;     }     return 0;   }   