Any number that reduces to 1 when you take the sum of the square of its digits and continually reiterate until it yields 1 is a happy number, any number that doesn't isn't, a happy prime is a number that's both happy and prime, now type it in! I don't know, talk about dumbing down. Don't they teach recreational mathematics anymore?
Before modification by Isaac at 14/12/2013 01:47:04 AM
We'll shift into night at about 10:30 pm EST if no votes changes before then, as I've something up this evening slightly after, else the deadline will be 2 AM and I'll post Twilight in the morning.
