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

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The smaller of the only two seven-digit palindromic primes formed from the first four nonzero digits. Can you find the larger? [Silva]


  Submitted: 2009-10-07 07:34:36;   Last Modified: 2009-11-05 09:09:31.

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