My senior project (too many years ago to recall) as a math major was on cryptanalysis. If only I'd had this resource then! But I was able to demonstrate the near-impossibility of factoring large primes by starting Mathematica running at the beginning of my presentation, and it hadn't factored the number by the end of the presentation - and it wasn't *that* big a number!

Love this series! Can't wait to see the next installment.