The book is now available! 443372888629441
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:

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 squarefree number n > 1 such that for each prime p which divides n, the quantity p2-1 divides n-1. [Pinch]

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