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

                                                        129458434 0434854921
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The smallest palindromic prime that remains prime if the middle digit is replaced by each of six other digits (in this case 2, 3, 5, 6, 8, or 9). [Caldwell]


  Submitted: 2009-03-17 18:01:24;   Last Modified: 2009-03-17 21:37:42.

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