#include <bits/stdc++.h>
// #include <atcoder/all> // NOTE: AtCoderライブラリ
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
using namespace std;
// using namespace atcoder; // NOTE: AtCoderライブラリ
typedef long long ll;
typedef long double ld;
typedef vector<int> vi;
typedef vector<long long> vl;
typedef vector<bool> vb;
typedef vector<char> vc;
typedef pair<int, int> pii;
// #define INF __INT32_MAX__
// #define INF 1e9
// #define LINF __LONG_LONG_MAX__


int main() {
    int N, H; cin >> N >> H;
    
    map<int, int> hg;
    for (int i = 2; i <= sqrt(H); i++) {
        if (H % i != 0) continue;
        int ext = 0;
        while (H % i == 0) {
            ext++;
            H /= i;
        }
        hg[i] += ext;
    }
    if (H != 0) hg[H]++;

// for (auto x : hg) { cout << x.first << "^" << x.second << endl; }


    vector<int> A(N);
    rep(i, N) {
        cin >> A[i];
        if (A[i] == 1) continue;
        for (auto x : hg) {
            if (A[i] % x.first != 0) continue;
            while (A[i] % x.first == 0) {
                A[i] /= x.first;
                hg[x.first]--;
            }
        }
    }

    bool ok = true;
    for (auto x : hg) {
        if (x.second > 0) ok = false;
    }

// for (auto x : hg) { cout << x.first << "^" << x.second << endl; }

    if (ok) {
        cout << "YES" << endl;
    } else {
        cout << "NO" << endl;
    }
}