#include <iostream>
using namespace std;

int main() {
 int n;
    cout<<"enter a number: ";
    cin>>n;
    cout<<endl;
    int i;
    int f;
    f=1;    // storing the number
    for (i=1 ; i<=n/2 ; i++){
        if (n%i==0)
        f = i;   // storing the largest factor
  }
cout<<"the largest factor of "<<n<<" is "<<f;
}