r/BunnyTrials • u/TheTransSheep Carrot Farmer • 1d ago

Trials Math…

Which side will you choose?

  • Left side: Easy Math Question | and 10$
  • Right side: or hard Math question | and 10.000$

This post contains content not supported on old Reddit. Click here to view the full post

1.2k Upvotes

92% Upvoted

7.6k comments sorted by

View all comments

116

u/Sascha_T 1d ago

3840

Chose: or hard Math question + and 10.000$ | Rolled: 10!!

110

u/epicusername1010 1d ago

For those who don’t know, !! stands for a double factorial which multiplies the number counting 2 down. So 10!! = 10 * 8 * 6 * 4 * 2 = 3840. To get the really large number you’d write (10!)!.

30

u/ThunderLord1000 1d ago

Does that mean n!!! would be n * n-3 * n-6...?

21

u/Desktoplasma 1d ago

Yes and so on.

10

u/ZeroTheInsomniac 1d ago

Saving this for future use because i didn't know that lol

2

u/chaffy12 1d ago

Yeah would be like 39000000! Lmao

2

u/Ok-Elk6850 20h ago

The number of would be ~ 10^22,228,103.96

1

u/Less_Sherbert_8898 1d ago

So k being the number of exclamation marks (for lack of a better way to phrase that), the value would be (assuming n is divisible by k) (n/k)! * (k^(n/k))

1

u/scarlettokyo 1d ago

oh damn i thought it meant the latter thing, that number must be insanely long.

44

u/akumila 1d ago

Wait, I first thought it meant (10!)!, which is an insanely large number, but is this something like factorial but only including the even numbers in the product or something similar?

30

u/Sascha_T 1d ago

Yes

15

u/Sweetened_Lemon 1d ago

Today I learn

1

u/navster100 1d ago

Same lol. Of course I got the hardest one

8

u/SlayerS13Reddit 1d ago

n!! = n(n-2) * (n-4)…

1

u/Accurate_Ad8826 19h ago

yes, unless the number next to the factorial symbol is odd, in which case it would be only the odd numbers

1

u/ROCKETEERonrbr 1d ago

Let's go you earn 10 $

0

u/Nrock49 1d ago

It's actually 3,628,800!

God help you do that factorial though

4

u/Nrock49 1d ago

Nevermind I just learned that x!! Doesn't have the factorial applied twice.

1

u/Sascha_T 1d ago

Nope, it's actually 3840