It turns out that there are 8 factorial minutes in February. And that’s not just a random coincidence; in fact, you can demonstrate that it’s true without performing any multiplication at all, just some easy factoring.
- February contains four weeks.
The number of minutes in four weeks can be expressed as:
4 weeks x 7 days/week x 24 hours/day x 60 minutes/hour
Now factor 24 and 60, to get this:
4 weeks x 7 days/week x (3 x 8) hours/day x (2 x 5 x 6) minutes/hour
Which is to say, removing the units that cancel out:
4 x 7 x 3 x 8 x 2 x 5 x 6 minutes
Or, reordering those numbers:
8 x 7 x 6 x 5 x 4 x 3 x 2 (x 1) minutes
- Which is 8 factorial.
(Credit: someone posted this at work the other day, but I got the impression they had heard it somewhere else.)
Edited to add: This doesn’t apply to leap-year Februaries.