#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

int main() {
  ll a, b;
  cin >> a >> b;
  // a = g a', b = g b'
  // -> GCD(a + b, ab) = GCD(g(a' + b'), g^2 a'b') = g GCD(a' + b', g a' b')
  // GCD(a' + b', a' b') = 1 -> g GCD(a' + b', g a' b') = g GCD(a' + b', g)
  ll g = gcd(a, b);
  cout << g * gcd((a / g + b / g), g) << endl;
  return 0;
}