The book is now available! 6121
(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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There are 6121 prime numbers that have sums of reciprocals of digits of one or less. [Gaydos]


  Submitted: 2018-02-18 07:07:43;   Last Modified: 2018-02-18 09:13:14.

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