#include<stdio.h>

unsigned long long int gcd(unsigned long long int a,unsigned long long int b){
	unsigned long long int c;
	while(b){
		c = a%b;
		a = b;
		b = c;
	}
	return a;
}

int main(void){
	unsigned long long int x,y,p,q,r;
	scanf("%llu%llu",&x,&y);
	p = gcd(x+y,x);
	q = gcd(x+y,y);
	r = gcd(x+y,p*q);
	printf("%llu\n",r);
	return 0;
}