#include<bits/stdc++.h>
using namespace std;
int main()
{
    int m,n,i=0;
    cin>>m>>n;
    while(1){
        i++;
        if(i%m==0&&i%n==0){
            break;
        } 
    }
    cout<<i<<endl;
    return 0;
}
/**************************************************************
	Problem: 1087
	User: lijinkai
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/