#include <bits/stdc++.h>
using i64 = long long;
void solve()
{
  i64 a,b;
  std::cin>>a>>b;
  i64 g=std::gcd(a,b);
  a/=g,b/=g;
  std::cout<<g*std::gcd(a+b,a*b)<<'\n';
}
int main()
{
    std::cin.tie(nullptr)->sync_with_stdio(false);
    solve();
}