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

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The lesser in the smallest Gridgeman pair where one member is strobogrammatic, the other invertible. [Punches]


  Submitted: 2007-04-15 00:36:56;   Last Modified: 2008-01-30 11:28:00.

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