#define _USE_MATH_DEFINES
#include <bits/stdc++.h>
using namespace std;
#define FOR(i,m,n) for(int i=(m);i<(n);++i)
#define REP(i,n) FOR(i,0,n)
#define ALL(v) (v).begin(),(v).end()
using ll = long long;
constexpr int INF = 0x3f3f3f3f;
constexpr ll LINF = 0x3f3f3f3f3f3f3f3fLL;
constexpr double EPS = 1e-8;
constexpr int MOD = 1000000007;
// constexpr int MOD = 998244353;
constexpr int dy[] = {1, 0, -1, 0}, dx[] = {0, -1, 0, 1};
constexpr int dy8[] = {1, 1, 0, -1, -1, -1, 0, 1}, dx8[] = {0, -1, -1, -1, 0, 1, 1, 1};
template <typename T, typename U> inline bool chmax(T &a, U b) { return a < b ? (a = b, true) : false; }
template <typename T, typename U> inline bool chmin(T &a, U b) { return a > b ? (a = b, true) : false; }
struct IOSetup {
  IOSetup() {
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);
    cout << fixed << setprecision(20);
  }
} iosetup;

template <typename T>
std::vector<std::pair<T, int>> prime_factorization(T val) {
  std::vector<std::pair<T, int>> res;
  for (T i = 2; i * i <= val; ++i) {
    if (val % i != 0) continue;
    int exponent = 0;
    while (val % i == 0) {
      ++exponent;
      val /= i;
    }
    res.emplace_back(i, exponent);
  }
  if (val != 1) res.emplace_back(val, 1);
  return res;
}

int main() {
  int n, h; cin >> n >> h;
  vector<int> a(n); REP(i, n) cin >> a[i], a[i] = abs(a[i]);
  if (count(ALL(a), 0) > 0) {
    cout << "YES\n";
    return 0;
  }
  for (auto [p, e] : prime_factorization(h)) {
    REP(i, n) {
      while (a[i] % p == 0 && e > 0) {
        a[i] /= p;
        --e;
      }
      if (e == 0) break;
    }
    if (e > 0) {
      cout << "NO\n";
      return 0;
    }
  }
  cout << "YES\n";
  return 0;
}