#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL_
void debug_out() {cerr << endl;}
template<typename Head,typename... Tail> void debug_out(Head H,Tail... T){cerr << ' ' << H; debug_out(T...);}
#define debug(...) cerr << 'L' << __LINE__ << " [" << #__VA_ARGS__ << "]:",debug_out(__VA_ARGS__)
#define dump(x) cerr << 'L' << __LINE__ << " " << #x << " = " << (x) << endl;
#else
#define debug(...) (void(0))
#define dump(x) (void(0))
#endif
#define rep(i,n) for (int i = 0; i < (int)(n); i ++)
#define irep(i,n) for (int i = (int)(n) - 1;i >= 0;--i)
using ll = long long;
using PL = pair<ll,ll>;
using P = pair<int,int>;
constexpr int INF = 1000000000;
constexpr long long HINF = 1000000000000000;
constexpr long long MOD = 1000000007;// = 998244353;
constexpr double EPS = 1e-4;
constexpr double PI = 3.14159265358979;

vector<int> sieve(int n) {
    vector<bool> prime(n + 1,true);
    prime[0] = false;
    prime[1] = false;
    for (int i = 3; i * i <= n; i += 2) {
        if (prime[i]) {
            int j = 2;
            while (i * j <= n) {
                prime[i * j] = false;
                j ++;
            }
        }
    }
    vector<int> ans = {2};
    for (int i = 3; i < n + 1; i += 2) {
        if (prime[i]) ans.push_back(i);
    }
    return ans; 
}

vector<pair<int,int>> factorization(long long N,vector<int>& primes) {
    vector<pair<int,int>> ret;
    for (int p:primes) {
        int power = 0;
        while (N%p == 0) {
            power ++;
            N /= p;
        }
        if (power > 0) ret.emplace_back(p,power);
    }
    if (N > 1) ret.emplace_back(N,1);
    return ret;
}

int main() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);

    ll N,H; cin >> N >> H;
    vector<ll> A(N);
    rep(i,N) cin >> A[i];

    auto ps = sieve(100000);
    auto x = factorization(H,ps);
    for (ll a:A) {
        for (P &p:x) {
            while (a%p.first == 0) {
                p.second--;
                a /= p.first;
            }
        }
    }
    bool flag = true;
    for (P &p:x) {
        if (p.second > 0) flag = false;
    }
    cout << (flag ? "YES":"NO") << '\n';
    return 0;
}