#include <bits/stdc++.h>
#define fastIO (cin.tie(0), cout.tie(0), ios::sync_with_stdio(false))
using namespace std;

int main() {
  fastIO;
  int n, h;
  cin >> n >> h;

  for (int i = 0, num; i < n; ++i) {
    cin >> num;
    if (h % num == 0) {
      h /= num;
    }

    if (h == 1) {
      cout << "YES" << '\n';
      return 0;
    }
  }

  cout << "NO" << '\n';
  return 0;
}