#include <bits/stdc++.h>
using namespace std;
const double pi = 3.14159265358979;
#define setup\
    cin.tie(0);\
    ios::sync_with_stdio(false);\
    cout << setprecision(20) << fixed;
#define int long long int
#define db double
#define P pair<int,int>
#define F first
#define S second
#define endl "\n"
#define dtor(deg) (((deg)/360)*2*pi)
#define rtod(rad) (((rad)/2/pi)*360)
#define all(a) a.begin(),a.end()
#define Srep(n) for(int i = 0; i < n; i++)
#define Lrep(i,a,n) for(int i = a; i < n; i++)
#define Brep1st(n) for(int bit = 0; bit < (1 << n); bit++)
#define Brep2nd(n) Srep(n) if(bit >> i & 1)
#define rep2d(n,m) Srep(n) Lrep(j,0,m)
#define vi vector<int>
#define vvi vector<vi>
#define vdb vector<db>
#define vb vector<bool>

bool is_prime(int n){
    if (n < 2) return 0;
    else if (n == 2) return 1;
    else if (n % 2 == 0) return 0;
    for(int i = 3; i * i <= n; i += 2) if(n % i == 0) return 0;
    return 1;
}

signed main(){
    setup;
    int n, h;
    cin >> n >> h;
    if(is_prime(h)){
        Srep(n){
            int input;
            cin >> input;
            if(input == h){
                cout << "YES" << endl;
                return 0;
            }
        }
        cout << "NO" << endl;
        return 0;
    }
    vi divisor(h);
    for(int i = 2; i * i <= h; i++){
        while(!(h % i)){
            h /= i;
            divisor[i]++;
        }
    }
    Srep(n){
        int input;
        cin >> input;
        for(int j = 2; j * j <= input; j++){
            while(!(input % j)){
                input /= j;
                divisor[j]--;
            }
        }
    }
    auto itr = max_element(all(divisor));
    if(*itr <= 0) cout << "YES" << endl;
    else cout << "NO" << endl;
}