The book is now available! 371321
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:
 

Participate:
Share
+ The largest known prime n such that n divides the (right) concatenation of all numbers from 1 to n written in base 10 (most significant digit on left), where n is prime only. [Heleen]




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