The book is now available! 75555...55557 (31-digits)
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

                                          7 5555545555 5455555455 5554555557
+ The only 5-quintuplet of 5's prime. (A 5-quintuplet of 5's prime is a palindromic prime of form p=a55555b55555b55555b55555b55555a, where a, b, 5 distinct digits. [Loungrides]

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