A while back we had a post about how Happy Numbers and the Spiral of Four make up a sort of binary code for all numbers in existence. We thought that was all there was to say. How wrong we were! A ...

Finding happy numbers is simple. Pick a number. Separate out its digits. Square them. Add them together to form a new number. Repeat. If the eventual product is one, you’ve got a happy number.

Happy numbers don’t have any real-world applications, but they do have amazing properties, ... take any natural number, say, 13, square its digits (1 2 = 1; 3 2 = 9) and add them ...