The book is now available! 188888881
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:

GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

+ A tetradic (or 4-way) plateau prime.

+ The lesser in the smallest Gridgeman pair where one member is strobogrammatic, the other invertible. [Punches]

Prime Curios! © 2000-2019 (all rights reserved)  privacy statement