5039
This number is a prime.
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This prime can be written as 1*1! + 2*2! + 3*3! + 4*4! + 5*5! + 6*6!, or as 7! - 1. [Sandri]
Submitted: 2005-04-03 05:44:33; Last Modified: 2008-08-01 00:18:07.
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