The book is now available! 5
(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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5 stays in the middle of every magic square of order 3. Note that the magical sum for such a square is 5*3. [Laurv]


  Submitted: 2004-01-11 09:26:18;   Last Modified: 2008-12-04 21:20:21.

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