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);
        int a = in.nextInt();
        int b = in.nextInt();
        System.out.println(lcm(a, b));

    }
    public static int lcm(int a, int b) {
        int lcm = (a * b) / gcd(a, b);
        return lcm;
    }
    public static int gcd(int a, int b) {
        if (b == 0)
            return a;
        return gcd(b, a % b);
    }
}