题解 | #求最小公倍数#

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        // 注意 hasNext 和 hasNextLine 的区别
        while (in.hasNextInt()) { // 注意 while 处理多个 case
            int a = in.nextInt();
            int b = in.nextInt();
            System.out.println(a*b/gcd(a, b));
        }
    }

    public static int gcd(int a, int b){
        int min = Math.min(a,b);
        int max = Math.max(a,b);
        a = max;
        b = min;
        int r = 1;
        while(b != 0){
            r = a%b;
            a = b;
            b = r;
        }
        return a;
    }
}