暴力枚举

#include<bits/stdc++.h>
using namespace std;
int main() {
    int a;
    cin>>a;
    for(int i = 1;i <= a;i++){
        int b;
        cin>>b;
        if(b == 1 or b == 0){
            cout<<"No"<<endl;
            continue;
        }
        bool k = 1;
        for(int j = 2;j < b;j++){
            if(b % j == 0){
                cout<<"No"<<endl;
                k = 0;
                break;
            }
        }
        if(k){
            cout<<"Yes"<<endl;
        }
    }
}