StackoverflowException.

What do I do now?

Nvm. Got it.

  if(num % 2 == 0){
       int num1 = num/2
       int num2 = num/2
       return isEven(num1) && isEven(num2)   
  } 

if(num % 3 == 0){
      int num1 = num/3
      int num2 = num/3
      int num3 = num/3
      return isEven(num1) && isEven(num2) && isEven(num3) 
}

Obviously we need to check each part of the division to make sure if they are even or not. /s