This number is a composite.

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The largest brilliant number that can be represented as the concatenation of two 3-digit primes, i.e., 683 and 929, as a prime square, i.e., 683929 = 827^2. [Loungrides]

Submitted: 2018-11-12 18:28:13;   Last Modified: 2021-01-03 16:52:55.
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