#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (n); i++)
#define all(x) (x).begin(),(x).end()
#define popcnt __builtin_popcount
using ll = long long;
using pii = pair<int,int>;
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; }
const ll inf = 1e16;

ll gcd(ll x,ll y){
  if(x<y) swap(x,y);
  if(y==0) return x;
  return gcd(y,x%y);
}

int main() {
  ll A,B;
  cin>>A>>B;
  ll g=gcd(A,B);
  ll a=A/g;
  ll b=B/g;
  ll ans=g*gcd(a+b,g);
  cout<<ans<<endl;
  return 0;
}