Descompunerea in factori primi [IMPORTANT]

#include <iostream>

using namespace std;

int main() {
    int x,y=1,d=2,p;
    cin>>x;
    while(x>1){
        p=0;
        while(x%d==0){
            p++;
            x=x/d;
        }
        if(p!=0){
            y=y*d;
        }
        d++;
    }
    cout<<y;
}