using System;
using System.Text;
using System.Linq;
using System.Collections.Generic;

public class Program
{
    public void Proc() {
        Reader.IsDebug = false;
        long[] inpt = Reader.ReadLine().Split(' ').Select(a=>long.Parse(a)).ToArray();

        long tmp1 = GetKouyaku(inpt.Sum(), inpt[0]);
        long tmp2 = GetKouyaku(inpt.Sum()/tmp1, inpt[1]); 
        Console.WriteLine(tmp2 * tmp1);
    }

    private long GetKouyaku(long num, long num2) {
        if(num % num2 == 0) {
            return num2;
        } else {
            return GetKouyaku(num2, num % num2);
        }
    }

    public class Reader {
        public static bool IsDebug = true;
        private static System.IO.StringReader SReader;
        private static string InitText = @"


2986298742152912 5785953812921267


";
        public static string ReadLine() {
            if(IsDebug) {
                if(SReader == null) {
                    SReader = new System.IO.StringReader(InitText.Trim());
                }
                return SReader.ReadLine();
            } else {
                return Console.ReadLine();
            }
        }
    }
    public static void Main(string[] args)
    {
        Program prg = new Program();
        prg.Proc();
    }
}