The book is now available! 239
(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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Arctan(1/239) in degrees begins 0.239..., and this is the only positive integer for which this is true. [Wu and Caldwell]


  Submitted: 2009-02-21 19:41:02;   Last Modified: 2009-02-21 19:43:11.

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