Why Happy Numbers are Also the Naughtiest Numbers in History

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 reader wrote in, giving me more information on how his math class made Happy Numbers the naughtiest numbers in history. »10/03/12 4:25pm10/03/12 4:25pm