#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++) {
    int64_t B;
    cin >> B;
    A *= B;
    A %= H;
  }
  
  cout << (A == 0 ? "YES" : "NO") << endl;
}