The book is now available! 111111151111111
(just those submitted by Silva)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

                                                            11111 1151111111

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

+ The smallest 15-digit palindromic prime formed from the digits 1 and 5. [Silva]

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