#include<iostream>
#include<cmath>
#include<iomanip>
#include<algorithm>
#include<cstdlib>
#include<cstring>
#include<vector>
#include<utility>

#define ll long long
#define sz(x) int(x.size())
#define all(x) x.begin(),x.end()
using namespace std;

void Fast_IO(){
    ios_base::sync_with_stdio(false), cin.tie(nullptr), cout.tie(nullptr);
    #ifndef ONLINE_JUDGE
        freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout);
    #endif
}





void solve(){
  ll a,b; cin>>a>>b;
    vector<ll>v={2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71};
bool flag =0;


for(int i=0; i<sz(v); i++){
    if(a%v[i]==0 && b%v[i]==0){
        flag = true;
        break;
    }
}

if(flag) cout<<"YES";
else cout<<"NO";


}

int main(){
    Fast_IO();
int t =1;
//cin>>t;
while(t--){
solve();
}
return 0;
}