#include <bits/stdc++.h>
using namespace std;
int main(void){
    long long a,b,ans=1;
    cin>>a>>b;
    long long tmp=a+b;
    ans*=gcd(tmp,a);
    tmp/=ans;
    ans*=gcd(tmp,b);
    cout<<ans<<endl;
    return 0;
}