6

This number is a composite.

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(1# + 2# + 3# + 4# + 5# + 6#) is one-half of pi(1! + 2! + 3! + 4! + 5! + 6!). [Wesolowski]

Submitted: 2009-11-24 13:17:05;   Last Modified: 2009-11-27 13:59:57.
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