40

This number is a composite.

Single Curio View:   (Seek other curios for this number)
40!+39!+38!+...+3!+2!+1!+0!+1!+2!+3!+...+38!+39!+40! is prime. [Schiffman]

Submitted: 2010-10-28 14:55:13;   Last Modified: 2016-07-23 01:03:37.
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