The book is now available! 253
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:
 

Participate:
Share
+ 253 - 1 is the largest prime that the prime number tester on this site will test. [Dunn]

+ 2^5-3 is prime. [Dunn]

+ The smallest value of A(3,k) which is not a prime or prime power. A(m,n) is Ackerman's function. [Hartley]

(There is one curio for this number that has not yet been approved by an editor.)




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