#include "iostream"
#include "math.h"
using namespace std;

long long int a, b,c;
long long int ans=1;
int num[2] = {};

int min(int x, int y) {
	if (x > y)return y;
	return x;
}

int main() {
	cin >> a >> b;
	c = a + b;
	int z = 2;
	while ((a!=1||b!=1)&&c!=1) {
		num[0] = 0;
		num[1] = 0;
		while (a % z == 0) {
			a /= z;
			num[0]++;
		}
		while (b % z == 0) {
			b /= z;
			num[0]++;
		}
		while (c % z == 0) {
			c /= z;
			num[1]++;
		}
		ans *= pow(z, min(num[0], num[1]));
		z++;
	}
	cout << ans<<"\n";
	return 0;
}