The book is now available! 107
(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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If A_n = 1!+3!+5!+...+(2n-1)!, then 107 divides A_53 and so 107 divides all A_n for n>=53. [Marot]


  Submitted: 2009-05-20 07:06:49;   Last Modified: 2009-05-20 11:36:38.

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