Proof: Zero Factorial Equals One

how to prove that 0! = 1

Category:

Education

Tags:

• Proof
• why
• Zero
• Factorial
• Equals
• One
• educational
• math314

[PurpleLilac10]

r u a math teacher if not u should be one!!!!

[math314]

@PurpleLilac10 no, I just finished high school and going to start college on August 30, 2010 :)

[NcStorm123]

u should prove 2+2=5

[math314]

@NcStorm123 I could try lol

[Oluremi7]

That's sooooo wrong, math314 I propose this answer: n! = n*(n-1)! 1! = 1*(1-1)! 1! = 0! 0! = 1! You did not keep the factorial sign from the previous working in the 1=0! line of your solution! QED!

[math314]

@Oluremi7 thats because 1! = 1

[paulio2293]

lol, this is not a proof, it's a corollary. It follows immediatley from the proof that n!=n(n-1)(n-2)...2.1

[WhisperInTheWindMvz]

Prove

Horse + Ramen Noodles :D

[NcStorm123]

@math314 ok try

[DannyV1991]

11 people get this, 4 people don't hence

11=maths smart

4=not maths smart

me=not maths smart

i'll still give you the thumbs up since you went to so much effort

[Hinduismglance]

love maths