37

This number is a prime.

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2! + 3! + 5! + ... + 29! = 31 (mod 37). It is the largest known prime with this property and there exists only one other such prime. [Firoozbakht]

Submitted: 2009-11-14 20:58:20;   Last Modified: 2009-11-15 12:09:46.
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