The book is now available! 5207
(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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5207*n + 1 is composite for all n up to 83. [Wesolowski]


  Submitted: 2009-07-12 13:28:24;   Last Modified: 2009-07-12 14:11:10.

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