The book is now available! 18
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

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18 is the only two-digit number m , such that three numbers, m + prime(m), m^2 + prime(m^2) & m^3 + prime(m^3), are primes. [Firoozbakht]


  Submitted: 2004-07-22 01:01:41;   Last Modified: 2008-01-30 11:28:00.

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