C++ :

#include <iostream>
using namespace std;
int gcd(int a,int b)
{
	if(a%b==0)return b;
	return gcd(b,a%b);
}
int main()
{
    int n,m;
    cin>>n>>m;
    cout<<n*m/gcd(n,m);
    
    return 0;
}