The book is now available! 351725765537
(just those submitted by Rivera)
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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.

Just showing those entries submitted by 'Rivera': (Click here to show all)

+ The concatenation of the five known Fermat primes 3, 5, 17, 257, and 65537. Concatenate them backwards, 655372571753, and it remains prime. [Rivera]

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