#include <bits/stdc++.h>
using namespace std;

template <typename T, typename U> bool cmin(T &a, U b) { return a > b && (a = b, true); }
template <typename T, typename U> bool cmax(T &a, U b) { return a < b && (a = b, true); }

signed main() {
  cin.tie(nullptr);
  ios_base::sync_with_stdio(false);

  int N, H;
  cin >> N >> H;
  vector<int> A(N);
  for (int i = 0; i < N; i++) cin >> A.at(i);

  long ans = 1;
  for (auto a : A) ans *= a, ans %= H;
  cout << ((ans) ? "NO" : "YES") << "\n";
}