Multiplying monkeys and parabolic primes

Exciting news, everyone! One of mathematics’ all-time favourites recently learned a couple of stunning new tricks. Prepare to be amazed. Oh, and today’s math T-shirt has the title “owl“gebra :) Enjoy! Burkard Polster and Giuseppe Geracitano P.S.: The basic insight this video is based on is due to the two Russian mathematicians Yuri Matiyasevich and Boris Stechkin. Google their names to find out more :)