2573253757232573

This number is a prime.

                                                           257325 3757232573

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Inserting between two identical distinct-prime-digit brilliant numbers, (2573 = 31 × 83), the concatenation in order of the other two distinct-prime-digit brilliant numbers, (2537 = 43 × 59 and 5723 = 59 × 97), we create a 16-digit prime-digit prime, that consists of the same number of each of the prime digits. [Loungrides]