What is math?

This project is a simple web-based tool that calculates factorials. A factorial is a mathematical operation where you multiply a number by every whole number below it down to one. For example, the factorial of 5 is 5 times 4 times 3 times 2 times 1, which equals 120. The tool lets you enter a number and quickly see the result. The factorial generator runs in your web browser using standard web technologies like HTML. Based on the repository description, it was originally built to run on Google App Engine, which is a platform that hosts web applications so people can access them online. The interface appears to be straightforward: you input a number, and it returns the factorial calculation. Who would use this? The main audience is probably students or educators working through math problems, combinatorics exercises, or probability calculations where factorials come up frequently. It could also be handy for anyone who needs a quick factorial calculation without wanting to pull up a full scientific calculator or write a formula in a spreadsheet. Since the project has just two stars on GitHub, it seems to be a small personal or learning project rather than a widely adopted tool. The README doesn't go into detail about specific features, limitations, or how to set it up. There is no documentation about how large an input number it can handle before the calculation gets too slow, which is a common challenge with factorials since the results grow extremely fast. The repository is essentially what it says it is: a basic utility for generating factorials, likely created as a learning exercise or a lightweight reference tool.