#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using ll = long long;
#define rep(i,n) for(ll i=0;i<(ll)(n);i++)
using mint = atcoder::modint998244353;

ll gcd(ll a,ll b){
	if(b==0) return a;
	return gcd(b,a%b);
}

int main(){
	ll n,k;
	cin>>n>>k;
	vector<ll> a(n);
	rep(i,n) cin>>a.at(i);
	rep(i,n) a.at(i)=gcd(a.at(i),k);
	ll lm=a.at(0);
	rep(i,n) lm=lm/gcd(lm,a.at(i))*a.at(i);
	if(lm!=k) cout<<"No\n";
	else cout<<"Yes\n";
}