Question

In how many different ways can 8 books be arranged on a bookshelf?

Answer 1

Explanation:

The answer to this question is "8 factorial."

"8 factorial" is written symbolically as 8!

It's equal to 8·7·6·5·4·3·2·1, which in turn is equal to:

56·30·24, or 40320.

The books could be arranged in 40320 different ways.