The book is now available! 23827
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

+ (23827, 82723) is the only pair of primes concatenated in ascending and descending order from a double-digit prime p and the prime q formed from the cubes of the digits of p, i.e., p=23. [Loungrides]




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