#include <bits/stdc++.h>
using namespace std;
#include <atcoder/all>
using namespace atcoder;
template <typename T> bool chmax(T &u, const T z) { if (u < z) {u = z; return true;} else return false; }
template <typename T> bool chmin(T &u, const T z) { if (u > z) {u = z; return true;} else return false; }
#define ll long long
#define rep(i, n) for (ll i = 0; i < (ll)(n); i++)
typedef pair<ll, ll> P;
//const ll INF = 1LL << 60;
using mint = modint1000000007;
//using mint = modint998244353;
const int MOD = 1000000007;
ll gcd(ll x, ll y) { return y ? gcd(y, x % y) : x; }

int main(){
 ll n,h;
 cin>>n>>h;
 vector<ll>a(n);
 rep(i,n)cin>>a[i];
 rep(i,n){
   ll tmp=gcd(a[i],h);
   h/=tmp;
 }
 if(h==1)cout<<"YES"<<endl;
 else cout<<"NO"<<endl;
 return 0;
}