The book is now available! 448
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:
 

Participate:
Share
+ 448 is the smallest number m such that three numbers, prime(m) - m, prime(m^2) - m^2 & prime(m^3) - m^3, are primes. [Firoozbakht]




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