#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll = long long;
using ld = long double;
using mint = modint998244353;

int main() {
  int n;
  ll k;
  cin >> n >> k;
  ll l = 1;
  for (int i = 0; i < n; i++) {
    ll a; cin >> a;
    a = gcd(k, a);
    l = lcm(l, a);
  }
  cout << (l == k ? "Yes": "No") << endl;
  return 0;
}