821

This number is a prime.

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2^821+821^3 is the 2nd prime and the largest non-titanic prime of form 2^p+p^3, where p is a prime. The previous such prime is 157. [Loungrides]

Submitted: 2011-06-05 02:12:23;   Last Modified: 2016-01-31 17:21:46.
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