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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

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The number of rooted trees with 10 nodes and also the number of ways of arranging 9 nonoverlapping circles. [Beedassy]


  Submitted: 2006-09-27 08:20:26;   Last Modified: 2009-03-29 23:46:34.

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