#include <bits/stdc++.h>
using namespace std;
#define int long long

signed main(){
    int A, B; cin >> A >> B;
    if(__gcd(A, B) == 1){
        cout << 1 << endl;
    }
    else{
        int g = __gcd(A, B);
        int A1 = A/g, B1 = B/g;
        int ans = g * __gcd(A1 + B1, g);
        cout << ans << endl;
    }
}