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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