The book is now available! 456
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:
 

Participate:
Share
+ 456 = sigma ( prime(4)^2 + prime(5)^2 + prime(6)^2 ). Note that 456 is the largest number with this property and there is only two numbers with this property. [Firoozbakht]




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