14
This number is a composite.
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Lucas (14) + 14 and Lucas (14) - 14 are both prime. We note
that the 14th Lucas number is 843 where both 843 +14 = 857
and 843 - 14 = 829 are prime. [Schiffman]
Submitted: 2024-07-01 22:32:59; Last Modified: 2024-07-01 22:56:53.
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