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

int gcd(int x, int y) {
    if(x < y) swap(x, y); //この式はなくても良い。

    while (y > 0) {
        int r = x % y;
        x = y;
        y = r;
    }
    return x;
}

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