What does exclamation stand for?

Question

(8-2)!

What does exclamation stand for?

 

 

Answer 1

! means factorial. I means to multiply together all of the numbers from the given number down to one.

Several examples:

 

3! = 3 · 2 · 1

5! = 5 · 4 · 3 · 2 · 1

 

So

 

(8 - 2)!

6!

6 · 5 · 4 · 3 · 2 · 1

720

Answer 2

The exclamation is the factorial symbol.  

 

For a positive integer N, N! is the product of all the integers from 1 to N.  

 

So (8-2)! = 6! = 1*2*3*4*5*6 = 720.