#include <bits/stdc++.h>
#define int long long
#define double long double
using namespace std;
const int MOD =  1000000007;
const int INF = 1e11;
using Graph = vector<vector<int>>;

signed main(){
  int N, H;
  cin >> N >> H;

  map<int, int> fac;
  for( int i = 2; i <= sqrt(H); i++ ){
    while( H%i == 0 ){
      H /= i;
      fac[i]++;
    }
  }
  if( H > 1 ) fac[H]++;

  map<int, int> sum;
  for( int i = 0; i < N; i++ ){
    int A;
    cin >> A;
    for( auto p : fac ){
      while( A%p.first == 0 ){
        A /= p.first;
        sum[p.first]++;
      }
    }
  }

  for( auto p : fac ){
    if( p.second > sum[p.first] ){
      cout << "NO" << endl;
      return 0;
    }
  }
  cout << "YES" << endl;
}