#include<iostream>
using namespace std;

typedef long long ll;

ll gcd(ll a, ll b){
return b == 0 ? a : gcd(b, a%b);
}

int main(){
ll a,b;
cin >> a >> b;
ll plus = a+b;
ll ga = gcd(plus, a);
plus /= ga;
ll gb = gcd(plus, b);

cout << ga*gb << endl;
return 0;
}