The book is now available! 12333...33321 (49-digits)
(just those submitted by Silva)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

                       123334555 5567777777 8999999999 8777777765 5555433321

Just showing those entries submitted by 'Silva': (Click here to show all)

+ A palindromic prime formed from the nine digits in ascending and descending concatenation, the odd digits repeated themselves times. [Silva]

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