The book is now available! 98639
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:

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


98639 is the smallest non-palindromic prime p such that sigma(p) = sigma(reversal(p)). Note that the next such prime is greater than 10^8. [Firoozbakht]


  Submitted: 2004-08-28 08:15:14;   Last Modified: 2008-01-30 11:28:00.

Prime Curios! © 2000-2018 (all rights reserved)