10!=10\*9\*8\*7\*6\*5\*4\*3\*2\*1

390 points · 27 comments · view on lemmy.world

27 Comments

NeatNit@discuss.tchncs.de · 89 pts · 174d

Fine, I'll do the math:

60 seconds in a minute (10 × 6)

60 minutes in an hour (9 × 5 × 4 / 3)

24 hours in a day (8 × 3)

7 days in a week (7)

6 weeks (3 × 2)

The bold 3's cancel out and become × 1, and then it's easy to see each integer from 1 to 10 appears exactly once when it's all multiplied together.

87Six@lemmy.zip · 42 pts · 174d (8 replies)

It took me way too long to understand the joke, I may be fucking dumb

Pratai@piefed.ca · 26 pts · 174d (5 replies)

I still don’t get it, so… you could be worse.

TheRedSpade@lemmy.world · 44 pts · 174d (2 replies)

A number followed by an exclamation point means multiplying it by each whole number below it until one.

3! = 3*2*1 = 6
5! = 5*4*3*2*1 = 120
10! = 10*9*8*7*6*5*4*3*2*1 = 3,628,800

3,628,800 seconds / 60 = 60,480 minutes
1008 hours
42 days
6 weeks

wewbull@feddit.uk · 6 pts · 174d

6 Weeks * 7 days * 8 * 3 (24) hours * 2 * 4 * 5 * 9 * 10 (3600 = 60²) seconds

The last one is a bit of a jump, but 9 * 4 is 36 and 10 * 5 * 2 is 100 so together it's 3600.

Pratai@piefed.ca · 4 pts · 173d

Thank you!

bjoern_tantau@swg-empire.de · 12 pts · 174d

10! means ten factorial. So 10 * 9 * 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1.

It's a common math joke.

87Six@lemmy.zip · 2 pts · 174d

Omg brotha stay strong 💀

foofiepie@lemmy.world · 7 pts · 174d

Me too. It’s even there in the title I didn’t read at first. I thought it was about them having just 10 seconds left.

jerkface@lemmy.ca · 6 pts · 174d

It's not typeset correctly or it would have been obvious and ruined the joke.

wonderingwanderer@sopuli.xyz · 24 pts · 174d (4 replies)

Okay, but did he pronounce it as "Ten factorial"‽‽‽‽‽

genfood@feddit.org · 15 pts · 174d (3 replies)

Nah, he wrote it

wonderingwanderer@sopuli.xyz · 16 pts · 174d (2 replies)

It's like "there are 10 kinds of people in the world: those that can read binary, and those that can't."

It doesn't work if you say it aloud.

MajorMajormajormajor@lemmy.ca · 5 pts · 174d (1 reply)

Okay, I tried the joke out. I said "it" out loud to my spouse and they didn't laugh.

wonderingwanderer@sopuli.xyz · 7 pts · 174d

ms_lane@lemmy.world · 14 pts · 174d

neat

panda_abyss@lemmy.ca · 11 pts · 174d

This is neat, never thought about this

Mobile@leminal.space · 11 pts · 174d

Hehe. Thanks for the chuckle.

ZoDoneRightNow@kbin.earth · 10 pts · 174d (3 replies)

seconds in an hour = 3600 = 10 * 9 * 8 * 5

24 hours in a day = 6 * 4

7 days in a week = 7

6 weeks = 6 = 3 * 2 * 1

NeatNit@discuss.tchncs.de · 7 pts · 174d (2 replies)

Aw, you beat me to it! But I formatted it better. So who wins? :P

ZoDoneRightNow@kbin.earth · 1 pts · 173d (1 reply)

hmm, seems my line breaks were removed...

NeatNit@discuss.tchncs.de · 1 pts · 173d

Welcome to markdown

remon@ani.social · 4 pts · 174d (4 replies)

You're missing 200 seconds.

TommySoda@lemmy.world · 24 pts · 174d (3 replies)

Am I missing something or just dumb? I did the math and 10! came out to 6 weeks exactly...

remon@ani.social · 22 pts · 174d (2 replies)

You're right, I fucked up.

TommySoda@lemmy.world · 17 pts · 174d

It's okay I still love you. <3

Zomg@piefed.world · 13 pts · 174d

We forgive you