#include<iostream>
#include<cassert>
using namespace std;
long gcd(long a,long b)
{
	while(b)
	{
		long t=a%b;
		a=b;
		b=t;
	}
	return a;
}
int main()
{
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	int N;
	long K;
	cin>>N>>K;
	long T=1;
	for(int i=0;i<N;i++)
	{
		long A;cin>>A;
		A=gcd(K,A);
		T=T/gcd(T,A)*A;
	}
	cout<<(K==T?"Yes":"No")<<endl;
}