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# 23827

This number is a prime.

(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]

Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell