#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for(int i = 0; i < n; i++)
#define rep2(i, x, n) for(int i = x; i <= n; i++)
#define rep3(i, x, n) for(int i = x; i >= n; i--)
#define elif else if
#define sp(x) fixed << setprecision(x)
#define pb push_back
#define eb emplace_back
#define all(x) x.begin(), x.end()
#define sz(x) (int)x.size()
using ll = long long;
using pii = pair<int, int>;
using pil = pair<int, ll>;
using pli = pair<ll, int>;
using pll = pair<ll, ll>;
const int MOD = 1000000007;
//const int MOD = 998244353;
const int inf = (1<<30)-1;
const ll INF = (1LL<<60)-1;
const double pi = acos(-1.0);
const double EPS = 1e-10;
template<typename T> bool chmax(T &x, const T &y) {return (x < y)? (x = y, true) : false;};
template<typename T> bool chmin(T &x, const T &y) {return (x > y)? (x = y, true) : false;};

template<typename T>
struct Prime{
    Prime() {}

    vector<T> divisors(const T &n) const{
        vector<T> ret;
        for(T i = 1; i*i <= n; i++){
            if(n%i == 0){
                ret.pb(i);
                if(i*i != n) ret.pb(n/i);
            }
        }
        //sort(all(ret));
        return ret;
    }

    vector<pair<T, int>> prime_factor(T n) const{
        vector<pair<T, int>> ret;
        for(T i = 2; i*i <= n; i++){
            int cnt = 0;
            while(n%i == 0) cnt++, n /= i;
            if(cnt > 0) ret.eb(i, cnt);
        }
        if(n > 1) ret.eb(n, 1);
        return ret;
    }

    bool is_prime(const T &n) const{
        if(n == 1) return false;
        for(T i = 2; i*i <= n; i++){
            if(n%i == 0) return false;
        }
        return true;
    }

    vector<bool> Eratosthenes(const int &n) const{
        vector<bool> ret(n+1, true);
        if(n >= 0) ret[0] = false;
        if(n >= 1) ret[1] = false;
        for(int i = 2; i*i <= n; i++){
            if(!ret[i]) continue;
            for(int j = 2; i*j <= n; j++) ret[i*j] = false;
        }
        return ret;
    }
};

int main(){
    Prime<int> P;
    int N, H;
    cin >> N >> H;
    vector<pii> v = P.prime_factor(H);
    rep(i, N){
        int A;
        cin >> A;
        if(A == 0) {cout << "YES" << endl; return 0;}
        A = abs(A);
        for(auto &e: v){
            while(e.second > 0 && A%e.first == 0) e.second--, A /= e.first;
        }
    }
    bool flag = true;
    for(auto &e: v) if(e.second > 0) flag = false;
    cout << (flag? "YES" : "NO") << endl;
}