523

This number is a prime.

Single Curio View: (Seek other curios for this number)

Israeli grandmaster Alik Gershon played 523 chess games to break the Guinness Book World Record for the most number of simultaneous matches in October 2010. [McCranie]

Submitted: 2010-10-25 00:49:42; Last Modified: 2010-10-26 23:41:13.