Numbers and algebra
Factorial
The product of every positive integer from 1 through a non-negative integer n, with 0! defined as 1.
Common notation n!
In one sentence
What does Factorial mean?
The product of every positive integer from 1 through a non-negative integer n, with 0! defined as 1.
How it is written
n!
A compact example
5! = 5 × 4 × 3 × 2 × 1 = 120.
Clear answers
Questions about Factorial
What does Factorial mean in mathematics?
The product of every positive integer from 1 through a non-negative integer n, with 0! defined as 1.
How is Factorial written?
A common notation is n!.
What is an example of Factorial?
5! = 5 × 4 × 3 × 2 × 1 = 120.