#include<cstdio>
#include<iostream>
using namespace std;

int main()
{
    int n,x;
    cin>>n;
    for(int i=0;i<n;i++)
    {
        cin>>x;
        bool flag=true;
        for(int j=2;j*j<=x;j++)
        {
            if(x%j==0) 
            {
                flag=false;
                break;
            }
        }
        if(flag==true) printf("%d is prime\n",x);
        else printf("%d is not prime\n",x);
    }

}