This number is a prime.

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The larger of two primes, i.e., 523541, 541523, formed from the concatenation in both orders of two successive 3-digit distinct-digit primes (523, 541), that also have the same sum of digits, (10). [Loungrides]

Submitted: 2020-07-23 22:27:08;   Last Modified: 2020-07-24 10:15:03.
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