The book is now available! 2309
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:

+ The only known primorial prime of a palindromic prime. Note that (2309, 2311) is the third twin primorial prime pair. [Loungrides]

+ The first occurrence of a prime number of integers between the smaller and larger terms of an amicable pair.

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