#include <stdio.h>

unsigned long long int gcd(unsigned long long int a,unsigned long long int b){
	unsigned long long int temp,r;
	while(1){
		if(a>b){
			temp=a;
			a=b;
			b=temp;
		}
		else{
			r=b%a;
			if(r==0)
				break;
			b=r;
		}
	}
	return a;
}

int main(){
	unsigned long long int A,B;
	scanf("%llu %llu",&A,&B);

	unsigned long long int a,gcd_ab,gcd_aa,calc;
	a=A+B;

	gcd_aa=gcd(a,A);
	gcd_ab=gcd(a,B);
	if(gcd_aa==gcd_ab)
		calc=gcd_ab;
	else
		calc =gcd_ab*gcd_aa;

	printf("%llu\n",calc);
	return 0;
}