1081
This number is a composite.
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The smallest 4-digit brilliant number, (1081 = 23 x 47),
whose the concatenations of prime factors are both primes,
i.e., 2347, 4723. [Loungrides]
Submitted: 2018-11-07 16:24:45; Last Modified: 2020-07-11 13:25:40.
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