#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define all(x) (x).begin(),(x).end()
using namespace std;
using ll = long long;
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; }
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; }
const ll INF = 1ll << 60;
const int INF32 = 1 << 30, dx[4] = { 1,0,-1,0 }, dy[4] = { 0,1,0,-1 };

int main(){
	ll A, B;cin >> A >> B;
	//A+BとA*Bの最大公約数
	//A = 1000000000000000000;
	//B= 1000000000000000000;
	ll ab = __gcd(A, B);
	ll alest = A / ab;
	ll blest = B / ab;
	ll last = __gcd(alest + blest, ab);
	cout << ab * last << endl;
	return 0;
}