#include<bits/stdc++.h>
#define fast ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
#define file freopen("CLOPRIME.inp","r",stdin);freopen("CLOPRIME.out","w",stdout);
using namespace std;
int main(){
 file;
 bool ktra[500005];
 memset(ktra,true,sizeof(ktra));
 ktra[0]=ktra[1]=false;
 for(int i=2;i*i<=500005;i++)
  if (ktra[i])
   for (int j=i*i;j<=500005;j+=i)
    ktra[j]=false;
 int n,x;
 cin>>n;
 for (int i=1;i<=n;i++){
  cin>>x;
  while (!ktra[x])
   x--;
  cout<<x<<endl;
 }
 return 0;
}