The book is now available! 399
(another Prime Pages' Curiosity)
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The nth Prime Page will now find any of the first 2.623˙1015 primes or π(x) for x up to 1017.

+ The smallest Lucas-Carmichael number.

+ 399 = 71 + 72 + 73 [Capelle]

+ The smallest number, all of whose prime factors are of form 4n+3, whose sum of distinct prime factors is prime: 3*7*19 = 399; 3+7+19 = 29. [Post]

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




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