421
This number is a prime.
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The divisors of the first composite number concatenated in
descending order does not form a good prime. If the
alphabet code is applied, i.e., 4 = D, 2 = B, 1 = A, then an anagrammatic solution is BAD. [Honaker]
Submitted: 2025-02-19 16:40:55; Last Modified: 2025-02-19 23:04:16.
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