What is the factorial of 0? (0!) 0 Factorial

What is the factorial of 0?

Here we will show you how to calculate the factorial of 0 (aka 0 factorial) and give you the exact answer.

Before we begin, note that the factorial of 0 can be written as 0 followed by an exclamation mark like this: 0!

Normally, we calculate the factorial of a number by multiplying the number by every number below it. However, 0 is the exception because of the following exponent rule:

In bⁿ, if n is 0, then the answer should be 1.

Thus, the answer to the factorial of 0 is 1.

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What is the factorial of 1?
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