The book is now available! 1122334455667788991
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

                                                        112233445 5667788991
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(1122334455667788991, 1122334455667788997) is a sexy prime pair formed by doubling each counting digit in order and attaching at the end respectively the digits 1 and 7. [Loungrides]


  Submitted: 2015-07-16 12:44:04;   Last Modified: 2018-05-25 14:33:17.

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