Happy Number Checker
Press the space bar or green flag to see if a number is a happy number!
1Happy numbers are numbers which come out of the process of squaring their digits, and then adding them up. Let's take 7 as an example:
We then do the same with 49:
We keep on taking these numbers and doing the same thing to them until we either reach 1 (in which case it is a happy number) or are stuck in a cycle (in which case it is an unhappy number)