Factorial Calculator
Understanding Factorials
The factorial of a non-negative integer 'n', denoted by n!, is the product of all positive integers less than or equal to 'n'. It is widely used in combinatorics and probability.
Formula
The factorial of n is calculated as:
\[ n! = n \times (n-1) \times (n-2) \times \dots \times 1 \]
By special definition, the factorial of 0 is 1 (\(0! = 1\)).
Calculate the factorial (n!) of a number.
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