#include <algorithm>
#include <array>
#include <cmath>
#include <cstdio>
#include <deque>
#include <iomanip>
#include <iostream>
#include <numeric>
#include <optional>
#include <queue>
#include <set>
#include <stack>
#include <unordered_map>
#include <unordered_set>
#include <vector>

using namespace std;

int main() {
    int32_t n, h;
    cin >> n >> h;
    vector<int32_t> as(n);
    bool f = false;
    for (auto &&a : as) {
        cin >> a;
        a = abs(a);
        f = a == 0;
    }
    if (f) {
        cout << "NO" << endl;
        return 0;
    }
    for (auto a : as) {
        for (auto i = 2; i * i <= a; ++i) {
            if (a % i != 0)
                continue;
            a /= i;
            if (h % i != 0)
                continue;
            h /= i;
            if (h == 1)
                break;
        }
        if (a > 1 && h % a == 0)
            h /= a;
        if (h == 1)
            break;
    }
    cout << (h == 1 ? "YES" : "NO") << endl;
    return 0;
}