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

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The smallest prime number that requires 29 steps to reach a palindrome with the reverse-then-add process. [Caldwell]


  Submitted: 2008-02-29 12:29:27;   Last Modified: 2009-03-13 10:06:13.

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