This number is a prime.

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21011 and 21013 are the smallest pair of consecutive Cyclops primes that have a Cyclops sum (42024) and a Cyclops product (441504143). Note that {21011, 21013} are also a twin prime pair. [Gaydos]

Submitted: 2017-09-18 17:02:36;   Last Modified: 2022-01-26 01:58:59.
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