C/C++ Program to calculate LCM of two(2) numbers

//Program to calculate LCM of two(2) numbers
#include<iostream>
using namespace std;
int main()
{
int a,b,max,lcm;
cout<<"\n enter 1st number:";
cin>>a;
cout<<"\n enter 2nd number:";
cin>>b;
max=(a>b)?a:b;
        if(max%a==0 && max%b==0)
          lcm=max;
        else
           lcm=a*b;
cout<<"LCM of "<<a<<" and "<<b<<" is "<<lcm<<endl;
return 0;
}