#include <stdio.h>
int gcd(int a,int b){
    if(b == 0)
    return a;
    return gcd(b,a % b);
}
int lcm(int a,int b){
    
}
int main() {
    int a,b;
    scanf("%d %d ",&a &b);
    if (a < 0 || b < 0) {
        printf("invalid input\n");
    }else if (a == 0 || b==0 ) {
        printf("0\n");
    }else {
        printf("%d\n ",lcm(a,b));
    }
    return 0;
}