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

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    ll N, K, v, c = 1;
    cin >> N >> K;
    for(int i = 0; i < N; i++){
        cin >> v;
        ll g = gcd(K, v);
        c = lcm(c, g);
    }
    cout << (c == K ? "Yes" : "No") << '\n';
}