Unexpected Factorial@sopuli.xyzEnglish · 15 days ago

pedm(as)

media.piefed.social

cross-posted to:
[email protected]

pedm(as)

media.piefed.social

redjard@lemmy.dbzer0.com to

Unexpected Factorial@sopuli.xyzEnglish · 15 days ago

cross-posted to:
[email protected]

cross-posted from: https://piefed.social/post/950402

Chat

Hamartiogonic@sopuli.xyzM
link
fedilink
English
arrow-up
1·
15 days ago
Oh, that’s so delightfully clever. Good job!

Unexpected Factorial@sopuli.xyz

unexpectedfactorial@sopuli.xyz

Create a post

You are not logged in. However you can subscribe from another Fediverse account, for example Lemmy or Mastodon. To do this, paste the following into the search field of your instance: [email protected]

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.

Visibility: Public

This community can be federated to other instances and be posted/commented in by their users.

1 user / day
1 user / week
38 users / month
47 users / 6 months
1 local subscriber
177 subscribers
12 Posts
13 Comments
Modlog

mods:
Hamartiogonic@sopuli.xyz