The book is now available! 658
(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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The numbers 6!+5!+8!+(6+5+8) and 6!+5!+8!-(6+5+8) are each prime. Note that 658^(6+5+8)+(6+5+8) is prime too! [Sariyar]


  Submitted: 2018-04-05 13:27:38;   Last Modified: 2018-04-05 13:43:31.

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