Question

Compute$3!,7!,8!,\mathrm{and}9!$.

Short answer

$$\begin{gathered} 3!=6 \\ 7!=5040 \\ 8!=40320 \\ 9!=362880 \end{gathered}$$

Step-by-step solution

Step 1. Given information.

The given statement is:

$3!,7!,8!,\mathrm{and}9!$

Step 2. Compute the values.

Use the formula:

$n!=n·\left(n-1\right)·\left(n-2\right)·........3·2·1$

Then,

$$\begin{gathered} 3!=3·2·1 \\ =6 \\ 7!=7·6·5·4·3·2·1 \\ =5040 \\ 8!=8·7·6·5·4·3·2·1 \\ =40320 \\ 9!=9·8·7·6·5·4·3·2·1 \\ =362880 \end{gathered}$$