The book is now available! 5897
(another Prime Pages' Curiosity)
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5897 is prime. Keller, Buell, and Young found that
5897 * 222619 + 1 is prime, but
5897 * 2n + 1 is composite for 0 < n < 22619.
Yura found that
5897 * 2111491 + 1 is prime.
Note that both 22619 and 111491 are the smaller members of twin prime pairs. [Melo]

 

  Submitted: 2000-09-02 09:29:23;   Last Modified: 2013-10-14 05:59:03.



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