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

int main() {
  int N, H;
  int64_t A = 1;
  cin >> N >> H;
  
  for (int i = 0; i < N; i++) {
    int B;
    cin >> B;
    A *= B;
    if (A % H == 0) {
      cout << "YES" << endl;
      return 0;
    }
  }

  cout << "NO" << endl;
}