백준 알고리즘 5347

import java.io.*;
import java.util.*;

public class Main {

    static BufferedReader bf = new BufferedReader(new InputStreamReader(System.in)); //선언

    public static void main(String[] args) throws  IOException{
        String s = bf.readLine();
        int i = Integer.parseInt(s);

        for (int j = 0; j < i; j++) {
            String s1 = bf.readLine();

            String parts[] = s1.split(" ");
            long a = Integer.parseInt(parts[0]);
            long b = Integer.parseInt(parts[1]);
            System.out.println(a*b/gcd(a,b));
        }
    }

    public static long gcd(long a, long b)
    {
        if(a%b == 0)
            return b;
        return gcd(b,a%b);
    }
}