#include <bits/stdc++.h>

using namespace std;

#define REP(i, n) for (int i=0; i<(n); ++i)
#define RREP(i, n) for (int i=(int)(n)-1; i>=0; --i)
#define FOR(i, a, n) for (int i=(a); i<(n); ++i)
#define RFOR(i, a, n) for (int i=(int)(n)-1; i>=(a); --i)

#define SZ(x) ((int)(x).size())
#define ALL(x) (x).begin(),(x).end()

#define DUMP(x) cerr<<#x<<" = "<<(x)<<endl
#define DEBUG(x) cerr<<#x<<" = "<<(x)<<" (L"<<__LINE__<<")"<<endl;

template<class T>
ostream &operator<<(ostream &os, const vector<T> &v) {
  os << "[";
  REP(i, SZ(v)) {
    if (i) os << ", ";
    os << v[i];
  }
  return os << "]";
}

template<class T, class U>
ostream &operator<<(ostream &os, const pair<T, U> &p) {
  return os << "(" << p.first << " " << p.second << ")";
}

template<class T>
bool chmax(T &a, const T &b) {
  if (a < b) {
    a = b;
    return true;
  }
  return false;
}

template<class T>
bool chmin(T &a, const T &b) {
  if (b < a) {
    a = b;
    return true;
  }
  return false;
}

using ll = long long;
using ull = unsigned long long;
using ld = long double;
using P = pair<int, int>;
using vi = vector<int>;
using vll = vector<ll>;
using vvi = vector<vi>;
using vvll = vector<vll>;

const ll MOD = 1e9 + 7;
const int INF = INT_MAX / 2;
const ll LINF = LLONG_MAX / 2;
const ld eps = 1e-9;

int main() {
  cin.tie(0);
  ios::sync_with_stdio(false);
  cout << fixed << setprecision(10);

  int n, h; cin >> n >> h;
  vll a(n);
  bool zero = false;
  REP(i, n) {
    cin >> a[i];
    a[i] = abs(a[i]);
    zero |= a[i] == 0;
  }
  if(zero) {
    cout << "YES" << endl;
    return 0;
  }
  if(h == 1) {
    cout << "YES" << endl;
    return 0;
  }
  map<int, int> mp;
  for(ll i=2;i*i<=h;++i) {
    if(h % i == 0) {
      mp[(int)i]++;
      h /= i;
    }
  }
  if(h != 1) {
    mp[h]++;
  }

  bool ok = true;
  for(auto &e: mp) {
    int cnt = 0;
    REP(i, n) {
      while(a[i] % e.first == 0) {
        cnt++;
        a[i] /= e.first;
      }
    }
    ok &= cnt >= e.second;
  }
  cout << (ok ? "YES" : "NO") << endl;

  return 0;
}