- #1
Rhythmer
- 14
- 0
Hi. I know the following two questions might seem stupid, but I really need the correct answers in order to better understand the way we deal with numbers.
1. How can we prove that (0! = 1)?
We all know (4! = 4*3*2*1), (3! = 3*2*1), (2! = 2*1), (1! = 1)
But for 0, (0! = 1) doesn't make sense. Don't you agree?
2. Is number 1 a prime? Why? Why not?
Is it true that some mathematicians refuse to consider number 1 a prime?
Thanks in advance
1. How can we prove that (0! = 1)?
We all know (4! = 4*3*2*1), (3! = 3*2*1), (2! = 2*1), (1! = 1)
But for 0, (0! = 1) doesn't make sense. Don't you agree?
2. Is number 1 a prime? Why? Why not?
Is it true that some mathematicians refuse to consider number 1 a prime?
Thanks in advance