Factorial
Factorial: use nonnegative integer. Review the formula, worked example and calculation steps.
Inputs
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Formula & explanation
n! = 1 × 2 × … × n; 0! = 1
Variables & units
- Nonnegative integer
- Numeric value · minimum 0, maximum 170
Worked example
5! = 120.
Assumptions
Defined here for nonnegative integers only.
Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.
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