I was a high school student. It was a warm spring day and the quarter was about to end. Instead of following what the history teacher was saying, I was busy scribbling code on a small piece of paper. She probably thought that I was diligently making notes. Or maybe she knew that I wasn't paying attention, but didn't really care. Either way, there was nothing to distract me and I could finally finish my program for finding Mersenne primes. I read about them in one of those "math encyclopedia for kids" type of books the day before and was fascinated by them.