Chapter 11.6, Problem 17E

To determine

To calculate: the factorial of $12!$ .

Answer to Problem 17E

The value of factorial $12!$ is $479001600$ .

Explanation of Solution

Given : the number is $12!$ .

Formula used:

  $n!=n(n-1)(n-2)\mathrm{......1}$

Calculation : toevaluate the $12!$ , put $n=12$ in the formula then multiply it.

  $\begin{array}{l}n!=n(n-1)(n-2)\mathrm{......1}\\ 12!=12·11·10·98·7·6·5·4·3·2·1\text{ [substitute n by 12]}\\ 12!=479001600\text{ [multiply]}\end{array}$

Hence,The value of factorial $12!$ is $479001600$ .