题解 | #求最小公倍数#

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {

    public static void main(String[] args) throws IOException {
        BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
        String [] arr = bf.readLine().split(" ");
        int a = Integer.parseInt(arr[0]);
        int b = Integer.parseInt(arr[1]);
        int num = a < b ? gys(a, b) : gys(b, a);
        int gbs = a*b/num;
        System.out.println(gbs);
    }

    private static int gys(int low, int high) {
        if (high % low == 0){
            return low;
        }
        return gys(high % low,  low);

    }
}