#include <iostream>
using namespace std;

int main(){
    int n,h,ans;
    cin >> n >> h;
    ans = 1;
    int in;
    for(int i=0; i<n; i++){
        cin >> in;
        ans *= in;
    }
    if(ans % h == 0){
        cout << "YES" << endl;
    } else{
        cout << "NO" << endl;
    }
}