The book is now available! 498
(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.

+ 498 = prime(498)-prime(4)*prime(9)*prime(8). 498 is the only known number (up to 1.3*10^8) with this property. [Firoozbakht]

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