Why is 0! = 1?

Comments · 21K

• CY

  @cyanide4456 · 1 year ago

  Procrastinating so hard from my work that started watching "Why is 0! = 1?"

  10K

• BA

  @baxwarrior1681 · 7 years ago

  I can't believe I'm watching this video for entertainment

  191K

• TA

  @tafm3446 · 7 years ago (edited)

  How many people have asked their teachers and were told “...because it just is”

  21K

• HO

  @honey7062 · 8 months ago

  Watched it in 2014 , YouTube recommended again in 2026

  769

• KV

  @kvekka9300 · 6 years ago

  This turned out to be way cooler than I had imagined.

  3K

• AL

  @alelanzz5889 · 7 years ago

  Teacher: &quot;and i divided by one&quot;<br>Class: &quot;WOOAHHHH!&quot;

  14K

• PH

  @photonic000 · 5 years ago

  I like how when he says &quot;people who have spent time on their phones recently knows these numbers VERY WELL&quot; is referring to the 2048 game which was popular at the time

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• AL

  @alivemath · 5 months ago

  Crazy how many people think they’re bad at math because of one bad teacher !

  150

• AM

  @ammocraft · 5 years ago

  Wish I’d had this guy as a maths teacher all those years ago. &nbsp;The “why” is so important to assist understanding…..we just got taught the “how”.

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• DR

  @DrJones0801 · 6 years ago

  Meanwhile my math teacher is: &quot;That&apos;s just the way it is. Don&apos;t question it!&quot;

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• NI

  @ni5hu · 6 years ago

  This is exactly what a teacher is supposed to do for students: create curiosity towards the subject.

  19K

• SM

  @smaaa1220 · 5 days ago

  this is why i love math. it makes sense

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