1517

This number is a composite.

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The only brilliant number concatenated in order from two successive double-digit odd numbers (15, 17), i.e., 1517 = 37 x 41. Note also that its prime factors, (37, 41), are also successive primes. [Loungrides]

Submitted: 2018-11-04 09:36:48;   Last Modified: 2021-07-05 11:01:05.
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