#include <stdio.h>
#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf 2000000001


int main(){	

	int N;
	cin>>N;
	
	long long H;
	cin>>H;
	
	rep(i,N){
		long long a;
		cin>>a;
		a = abs(a);
		long long g = gcd(a,H);
		if(a==0){
			H = 1;
			continue;
		}
		H /= g;
	}
	
	if(H==1)cout<<"YES"<<endl;
	else cout<<"NO"<<endl;
		

    return 0;
}