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

int pb(map<int,int> &m, int x){ 
    int t = x;
    for(ll i=2; i*i<=t; i++){
        if(x % i == 0){
            x /= i;
            m[i]++;
        }

        if(x == 1) break;
    }

    if(x != 1) m[x]++;
}

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

    map<int,int> hm;
    pb(hm, h);

    map<int,int> am;

    int t;

    for(int i=0; i<n; i++){
        cin >> t;
        pb(am, t);
    }

    for(auto e : hm){
        auto k = e.first;
        auto v = e.second;

        if(v > am[k]){
            cout << "NO" << endl;
            return 0;
        }
    }

    cout << "YES" << endl;
}