#include<iostream>
using namespace std;
#define ll long long int
int main(){
    ll n,h;cin>>n>>h;
    ll p=1;
    
    for(ll i=0,a;i<n;i++){
        cin>>a;
        p*=a;
    }
    p%h==0?cout<<"YES":cout<<"NO";
return 0;
    
}