“Beauty is the first test: there is no permanent place in the world for ugly mathematics.” – G. H. Hardy I’ve been reading Proofs from THE BOOK by Aigner and Ziegler, a paean to beautiful mathematics. The Book refers to a conceit of the mathematician Paul Erdős. From wikipedia: [Erdős] spoke of “The Book”, an imaginary book in which God …

## A Physical Game for Factoring and Primes: Groups! (Plus: Math for Love grows)

I’ve been out of touch on the old web-log lately, but after a three week hiatus, I’m back! If you glance at the rest of the site, you might notice that there’s another person working with me. I haven’t officially announced it here yet, so I will now: the exceptional Katherine Cook has joined Math for Love. She’s going to …