Unexpected Factorial

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When you use an exclamation mark with a number, you’re actually implying it’s not a normal number any more. It’s a factorial!

Ok, so how does this work?

5!=1×2×3×4×5=120

6!=720

These numbers get really large. For example:

15!≈1.3×10^12

So, next time you see a headline with 2000! in it, you’ll know what to expect.

There are also double factorials (n!!) and iterated factorials (n!)!, and they aren’t the same thing. Just add more exclamation marks and you get multifactorial. Check wikipedia to see how spicy it gets.

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someone runs Windows 98! (discuss.tchncs.de)

submitted 2 weeks ago* (last edited 2 weeks ago) by schnurrito@discuss.tchncs.de to c/unexpectedfactorial@sopuli.xyz

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[–] aeronmelon@lemmy.world 4 points 2 weeks ago

Communicator 4.0, the height of Elven civilization.

[–] DarkCloud@lemmy.world 3 points 2 weeks ago* (last edited 2 weeks ago)

Netscape, co-founded by anti-democracy fascist Marc Andreesen, of Andreesen-Horowitz. Who has a manifesto about Network Cities where the wealthiest citizens make the laws for everyone else. The man behind the "California Forever" project trying to implement this Plutocratic Fascism IRL.

Oh and FireFox who are currently trying to protect Google from anti-trust laws, because Google pays them for our data?

[–] Blue_Morpho@lemmy.world 3 points 2 weeks ago

I still have my Netscape T shirt that they sent when I bought $30k of licenses.