HDOJ 1108 最小公倍数

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        while(sc.hasNext()){
            int a = sc.nextInt();
            int b = sc.nextInt();
            if(a<b){
                a = a^b;
                b = a^b;
                a = a^b;
            }
            int a1=a;
            int b1=b;
            //System.out.println(a + "  "+b);
            int t=b;//288 123 
            while(true){
                b = a%b;
                a=t;
                t=b;
                if(b==0){
                    break;
                }
            }
            //求最大公约数
            System.out.println(a1/a*b1);
        }       
    }
}