#include <bits/stdc++.h>
#define rep(i,n) for (int i = 0; i < (n); ++i)
using namespace std;
using ll = long long;
using P = pair<int,int>;
const int INF = 1001001001;

int main() {
  ll n, h;
  cin >> n >> h;
  vector<ll> a(n);
  ll ans = 1;
  for(int i = 0; i < n; i++){
    cin >> a[i];
    ans *= a[i];
  }
  if(ans%h == 0) cout<<"YES"<<endl;
  else cout<<"NO"<<endl;

  return 0;
}