Unexpected Factorial@sopuli.xyzEnglish · 6 months ago

September 24!

sopuli.xyz

September 24!

sopuli.xyz

Hamartiogonic@sopuli.xyzM to

Unexpected Factorial@sopuli.xyzEnglish · 6 months ago

Now September has about 6.2*10^23 days, which is several orders of magnitude longer than the age of the known universe.

source

Chat

Ephera@lemmy.ml
link
fedilink
English
arrow-up
1·
6 months ago
https://en.wikipedia.org/wiki/Eternal_September

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: !unexpectedfactorial@sopuli.xyz

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
5 users / month
10 users / 6 months
1 local subscriber
118 subscribers
8 Posts
6 Comments
Modlog

mods:
Hamartiogonic@sopuli.xyz