Stirlings Factorial

Stirling's approximation (or Stirling's formula) is an approximation for factorials. It is a good approximation, leading to accurate results even for small values of n.

Calculator of Stirlings Factorial

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Formula of Stirlings Factorial

n! \approx \sqrt{2 \pi n} \left( \frac{n}{e} \right)^n

• n = Number of elements