The book is now available! 55555
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:
 

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

+ The larger of two repdigit numbers consisting of d identical digits d whose the concatenation in order of all prime factors is prime, i.e., 55555 = 5*41*271 and 541271 is prime. (The other is 22 for which, 22 = 2*11 and 211 is prime). [Loungrides]




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