lcm of the number

public class LCMOfTwoNumbers {
public static void main(String args[]){
int a, b, max, step, lcm = 0;
Scanner sc = new Scanner(System.in);
System.out.println("Enter first number ::");
a = sc.nextInt();
System.out.println("Enter second number ::");
b = sc.nextInt();

  if(a > b){
     max = step = a;
  }
  else{
     max = step = b;
  }

  while(a!= 0) {
     if(max % a == 0 && max % b == 0) {
        lcm = max;
        break;
     }
     max += step;
  }
  System.out.println("LCM of given numbers is :: "+lcm);

}
}