#include<iostream> #include<math.h> using namespace std; bool f(int n){ if(n0||n1)return false; for(int i=2;i<=sqrt(n);i++){ if(n%i==0)return false; } return true; } int main(){ int t,n; cin>>t; while(t--){ cin>>n; if(f(n))cout<<"Yes"<<endl; else cout<<"No"<<endl; }

return 0;

}

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