#include <bits/stdc++.h>
using namespace std; // 計算回数は 2 * 10^8 ぐらいまで
using ll = long long;         // int は 2 * 10^9 まで
const int INF = 1e9; // 10^9
const ll LINF = 1e18;  // 10^18
template<class T>bool chmax(T &a, const T &b) {if (a<b) {a=b; return 1;}return 0;}
template<class T>bool chmin(T &a, const T &b) {if (b<a) {a=b; return 1;}return 0;}

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

ll lcm(ll a, ll b) {
    return a / gcd(a, b) * b;
}

int main() {
 ll A, B; cin >> A >> B;

 ll g = gcd(A+B, A);
 ll h = gcd(A+B, B);

 cout << lcm(g, h) << endl;   
}