The book is now available! 86969
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:
 

Participate:
Share
+ The prime 86969 is the only five-digit number m such that pi(m) and prime(m) are palindromic numbers. [Firoozbakht]




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