The book is now available! 23496587
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:
 

Participate:
Share
+ The smallest Yarborough prime with the most distinct digits that forms another prime when each digit d is repeated d times: 22333444499999999966666655555888888887777777. [Beedassy]




Prime Curios! © 2000-2017 (all rights reserved)