The book is now available! 74777...77517 (28-digits)
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

                                              74777481 7487748974 9975077517
+ The smallest emirp commencing and ending with the digit 7 formed by concatenating seven consecutive primes: {7477, 7481, 7487, 7489, 7499, 7507, 7517}. [Jha]




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