Every kid at some point wonders, "How much is a kajillion? Or a bazillion?" Even adults may have the impression that math is mostly about numbers and finding ways to deal with them, whatever their size. Join Po-Shen Loh, Carnegie Mellon math professor and national lead coach of the USA International Math Olympiad team, as he gives the inside scoop on whether and when numbers more gigantic than you've ever dreamed of really do turn up in the world of mathematics — and get a glimpse into the little-known drama of competitive math contests, as well.