#include <bits/stdc++.h>
using namespace std;


int gcd(int a, int b)
{
   if (a%b == 0)
   {
       return(b);
   }
   else
   {
       return(gcd(b, a%b));
   }
}


int main() {
  int n, h;
  cin >> n >> h;
  
  for (int i = 0; i < n; i++) {
    int a;
    cin >> a;
    
    h /= gcd(a, h);
    
    if (h == 1) {
      cout << "YES" << endl;
      return 0;
    }
  }
  
  cout << "NO" << endl;
  
}