#include <bits/stdc++.h>
#define fastIO (cin.tie(0), cout.tie(0), ios::sync_with_stdio(false))
using namespace std;

vector<int> divEnumerate(int num) {
  vector<int> res;
  if (num == 1) {
    res.emplace_back(1);
    return res;
  }

  for (int i = 2; i * i <= num;) {
    if (num % i == 0) {
      res.emplace_back(i);
      num /= i;
    } else {
      i == 2 ? i++ : i += 2;
    }
  }
  res.emplace_back(num);
  return res;
}

int main() {
  fastIO;
  int n, h;
  cin >> n >> h;

  vector<int> A(n);
  for (auto &a : A)
    cin >> a;

  sort(A.begin(), A.end());
  reverse(A.begin(), A.end());

  for (const auto mod : A) {
    if (h % mod == 0) {
      h /= mod;
    }

    if (h == 1 || h == mod) {
      cout << "YES" << '\n';
      return 0;
    }
  }

  cout << "NO" << '\n';
  return 0;
}