Factorial of large numbers

computes factorials of large arguments using standard algorithm
2.2K Downloads
Updated 10 May 2007

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This function implements a standard algorithm for computing factorials. It may not be the most efficient for very large arguments, but it is very transparent. The function accepts single numbers as inputs or arrays.

Note that for any real work, the code suggested by John D'Errico is actually preferable, because it is faster and more precise. This code is implemented in another file on FEX, logfactorial. I would therefore suggest that you use that function instead of largefactorial.

Cite As

Yvan Lengwiler (2024). Factorial of large numbers (https://www.mathworks.com/matlabcentral/fileexchange/14816-factorial-of-large-numbers), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R14SP3
Compatible with any release
Platform Compatibility
Windows macOS Linux
Acknowledgements

Inspired: Log of factorial of large numbers

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Version Published Release Notes
1.0.0.0

Better documentation.
Small bug fix.
Slightly better speed.