#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include<iostream>
#include<cstdint>
#include<cstddef>
#include<vector>
#include<map>
//#include<atcoder/all>
//using namespace atcoder;
using namespace std;
using i32 = int_fast32_t;
using i64 = int_fast64_t;
using usize = size_t;
using u32 = uint_fast32_t;
using u64 = uint_fast64_t;
using i128 = __int128_t;
using u128 = __uint128_t;
template<typename T>
using vec = vector<T>;
#define rep(i, n) for (i64 i = 0; i < (i64)(n); ++i)
#define all(a) (a).begin(),(a).end()
#define rall(a) (a).rbegin(),(a).rend()
#define len(hoge) (i64)((hoge).size())
using P = pair<i64,i64>;
void solve(){
}
int main(){
    ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    i64 n,k;
    cin >> n >> k;
    vec<i64> a(n);
    rep(i,n)cin >> a[i];
    map<i64,i64> mp;
    for(i32 i = 2; i * i < k; i++){
        if(k % i == 0){
            k /= i;
            mp[i]++;
        }
    }
    if(k != 1)mp[k]++;
    rep(i,n){
        for(auto &[key,val]:mp){
            if(a[i] % key == 0 && val > 0){
                a[i] /= key;
                val--;
            }
        }
    }
    for(auto [key,val]:mp){
        //cout << key << " : " << val << endl;
        if(val){
            cout << "NO" << endl;
            return 0;
        }
    }
    cout << "YES" << endl;
}