#include <iostream>
#include <vector>
#include <cstdio>
#include <algorithm>
#include <cassert>
#include <utility>
#include <string>
#include <cmath>
#include <set>
#include <functional>
#include <map>
#include <queue>
#include <stack>
#include <iomanip>
using namespace std;
#define rep(i,n) for(int i = 0; i < n; ++i)
#define show(x) cout << #x << " = " << x << endl;
typedef long long ll;
typedef pair<int,int> pii;
int main(){
    ll a,b;
    cin >> a >> b;
    ll hoge = __gcd(a,b);
    cout << __gcd(hoge,a/hoge+b/hoge)*hoge << endl;
}