The book is now available! 65536
(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 largest known number such that its sum of unitary divisors is prime. A divisor d of n is said unitary if gcd(d, n/d) = 1. Note that this number is a Fermat prime minus one. [Russo]

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