What's special about 196?
Free audio book offer: http://www.audible.com/numberphile
Dr James Grime delves into the largely unresolved world of Lychrel Numbers?
James Grime: https://twitter.com/jamesgrime
For audio books by Numberphile stars, go to Audible and search these names; Hannah Fry, Alex Bellos, Simon Singh, Edward Frenkel --- http://www.audible.com/numberphile
Receive a Brady-signed postcard from this video: http://www.bradyharanblog.com/postcard/89
Cheryl's Birthday: https://youtu.be/emiMj8cCL5E