The book is now available! 20772199
(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 number 20772199 is the smallest integer with the property that the sum of the prime factors of n and the sum of the prime factors of n+1 are both equal to 666: [Rivera]

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