The book is now available! 90441
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:

+ Zhi-Wei Sun conjectured in March 2008 that any integer n > 90441 can be written as n = T + p, where T is a positive triangular number and p = 0 or a prime congruent to 3 (mod 4). [Capelle]

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