This number is a composite.

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The only brilliant number formed from the concatenation of two successive double-digit primes, (2923 = 37 × 79). Note that both the concatenations of its prime factors, i.e., 3779 and 7937, are primes. [Loungrides]

Submitted: 2019-11-20 00:04:19;   Last Modified: 2020-04-07 09:58:49.
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