The exact factorial of 8 is:

40320

📌 Number of digits in the exact factorial of 8! = 5.

Approximately, the value of 8! can also be written as 40320.

How to calculate 8!

The formula for finding the factorial of a number is:

n! = n × (n-1) × (n-2) × … × 2 × 1

The same formula can also be written in terms of PI product notation as:

Factorial Formula

So, by definition, 8! is calculated as:

8 × 7 × 6 × … × 2 × 1

Also see:

Frequently asked questions

Here are some frequently asked questions about factorial of 8:

How many digits are there in the exact value of 8!?

There are 5 digits in the exact value of 8!.

What is the value of 8 factorial in terms of E?

The value of 8! in terms of E is 40320.

What are the uses of factorials?

According to Wikipedia:

In mathematical analysis, factorials are used in power series for the exponential function and other functions, and they also have applications in algebra, number theory, probability theory, and computer science.