This number is a prime.

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(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]

Submitted: 2016-06-28 19:11:53;   Last Modified: 2018-12-06 12:40:59.
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