Enter a number. If the number is odd, the calculator will multiply by 3 and add 1. If it is even, it will divide by two. This will keep going until the number is 1. The goal is to last as many "rounds" as possible. Good luck friends!
Thanks to my good friend Sam for the idea, and Griffpatch for the text engine. 3x + 1 is a famous math problem, that always ends in a 4-2-1-4 loop. Mathematicians are currently testing thousands of numbers, but so far they have not found an end.
