The book is now available! 719
(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 largest odd highly-imperfect number, which sets a record for the value of |sigma(n)-2n|, is a(79) = 719. Both 79 and 719 are prime. [Post]


  Submitted: 2010-05-29 01:00:44;   Last Modified: 2010-05-29 07:07:41.

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