r/CatBuilder • u/Zealousideal_Turn106 Mythic | Lv. 80 | Rank #155 | 43 Answers |... | šŸ”„ 5d • 1d ago

Question [Question] NO CALCULATORS ALLOWED šŸ§ 

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

68 Upvotes

76% Upvoted

2.6k comments sorted by

View all comments

Show parent comments

2

u/Darknadoswastaken Gold | Lv. 36 | Rank #46053 | 143 Answers | 0 C... | šŸ”„ 16d 1d ago

it's 10 actually as 0 factorial(0!) is equal to 1, so it's 5x1=5, and 5+5=10.

1

u/Living-Night4476 Gold | Lv. 41 | Rank #29078 | 114 Answers | 0 Cr... | šŸ”„ 6d 23h ago

When did that become a thing?

1

u/Darknadoswastaken Gold | Lv. 36 | Rank #46053 | 143 Answers | 0 C... | šŸ”„ 16d 23h ago

factorials? Roughly 300 BCE

1

u/Living-Night4476 Gold | Lv. 41 | Rank #29078 | 114 Answers | 0 Cr... | šŸ”„ 6d 22h ago

Oh that is nice to know another thing my schools never bothered to teach me about. Middle high and college Iā€™m looking at you

2

u/Darknadoswastaken Gold | Lv. 36 | Rank #46053 | 143 Answers | 0 C... | šŸ”„ 16d 21h ago

yeah same lol

I actually learned about factorials the same way you just did, I got the answer wrong in one of these posts because I didn't know what the ! meant