#include <stdio.h>
#define ullong unsigned long long int
#define true 1
#define false 0
int main(int argc, char ** argv){
  ullong a, b, ta, tb, c, d;
  while(true){
    scanf("%llu %llu", &a, &b);
    if(a==0) break;
    //printf("l");
    ta=a;tb=b;
    while(b!=a){
      //printf("=%llu %llu\n", a, b);
      if(a<b)a+=ta;
      else b+=tb;
    }
    printf("%llu\n", (a/ta)*(b/tb));
  }
  return 0;
}