#include<stdio.h>
void main()
{
         int x=24,y=88;
         int i=2,p=1;
         do{
               while(x%i==0 && y%i==0){
                         p*=i;x/=i;y/=i;
               }
               i++;
        }while(x>=i && y>=i);
        printf("%d\n",p*x*y);
}
它是干什么的，它的每一步是什么意思，请高手解答