Question

If 7! = 7 x 6 x 5 x 4 x 3 x 2 x 1, then 5! =

Answer 1

Explanation:

Question says find

$5!$

Concept:

The n factorial formula is given below as

$n!=n\times(n-1)\times(n-2)\times.......\times1$

Hence,

5 factorial will be

$\begin{gathered} 5!=5\times(5-1)\times(5-2)\times(5-3)\times(5-4) \\ 5!=5\times4\times3\times2\times1 \end{gathered}$

Hence,

The final answer is

$5!=5\times4\times3\times2\times1=120$