#include <iostream>
#include <numeric>
using namespace std;

int main() {
    int n;
    long long k;
    cin >> n >> k;
    long long l = 1;
    for (int i = 0; i < n; i++) {
        long long a;
        cin >> a;
        a = gcd(k, a);
        l = lcm(l, a);
    }
    if (l == k) cout << "Yes" << endl;
    else cout << "No" << endl;
}