#include<iostream>
#include<map>
#include<vector>
#include <algorithm>
#include<math.h>
#include <iomanip>
#include<set>
#include <numeric>
#include<string>
using namespace std;

int main()
{
    int n, h, cnt = 0;
    cin >> n >> h;
    vector<int> a(n), b(n);
    for (int i = 0; i < n; i++) cin >> a[i];
    for (int i = 0; i < n; i++) b[i] = gcd(a[i], h);
    while (h != 1){
        if (cnt == n) {
            cout << "NO" << endl;
            return 0;
        }
        if (!(h%b[cnt])) h /= b[cnt];
        int t = gcd(h, b[cnt]);
        if (t != 1) h /= t;
        cnt++; 
    }
    cout << "YES" << endl;
}