5
This number is a prime.
Single Curio View: (Seek other curios for this number)
5! + 4! - 3! + 2! - 1! and 5! - 4! + 3! - 2! + 1! are each members of a twin prime pair! [Homewood]
Submitted: 2018-05-01 13:12:41; Last Modified: 2018-05-01 14:33:09.
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