Question

How many ways to sit 10 people around a table?

Answer 1

362,880. You can solve this by doing 9! (9*8*7*6*5*4*3*2*1). You don't do it by ten because one of the spots has to be fixated.

Answer 2

10 factorial times to sit 10 people around table.
Factorial is defined as n! = n*(n-1)*(n-2)*...*2*1

10*9*8*7*6*5*4*3*2*1=3628800 ways to sit people around table.