The book is now available! 68784...50625 (24-digits)
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

                                                  6878 4693856020 4958150625
+ 910695^4 (687846938560204958150625) is the smallest pandigital fourth power that has no multidigit primes in the substrings of its digits. [Gaydos]

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