백준 1934 자바 - 최소공배수

// 최소공배수
package Bronze_I_1;

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

public class Ex1934 {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

        int t = Integer.parseInt(br.readLine());

        for (int i = 0; i < t; i++) {
            StringTokenizer st = new StringTokenizer(br.readLine());

            int a = Integer.parseInt(st.nextToken());
            int b = Integer.parseInt(st.nextToken());

            int gcd = GCD(a, b);
            System.out.println(a * b / gcd);
        }
    }

    static int GCD(int num1, int num2) {
        if (num1 % num2 == 0) {
            return num2;
        }
        return GCD(num2, num1 % num2);
    }
}