Bob's super factorial calculator

Bob's super factorial calculator!

navagation:
Statistics | Rules | Browser Messages | Known Bugs | About

Starting Number:
Ending Number:

Calculation Result

Statistics:
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Rules:
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Don't try a large range of numbers. This calculation is being peformed by your browser, and it can crash your browser if you do.
Integers only. Fractional parts are truncated.
No negative numbers.
Numbers only should be pretty obvious, but I know some of you like to try everything. It will calculate 1! if you put in any non-numbers.

Broswer Messages:
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If you're using Internet Explorer, and you get this message, click on "No".
All it means is the calculation is taking longer than Internet Explorer expects it to.
It might ask a few times during a calculation, so keep clicking "No" until it's finished.
If you're using Firefox, and you get this message, click on "Continue".
All it means is the calculation is taking longer than Firefox expects it to.
It might ask a few times during a calculation, so keep clicking "No" until it's finished.

Known Bugs:
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There are no known bugs in the calculator at this time.
Firefox doesn't properly word wrap the output in the result box. The Firefox team is aware of this problem and is working to correct it.
The script has hang up issues with Opera, so use it with care. It's seems pretty safe up to 400! Opera also won't word wrap the output correctly. (Ugh! here's to hoping CSS3 becomes a standard sooner than later.)

About:
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This was a project done out of boredom and necessity. The first time I wrote a program to factorial numbers was in high school to answer an extra credit homework problem which was: "How many zeros are at the end of 25!?" Sure I could have done it by hand, but that's no fun. Now, some ten years later, I need it again for a statistics class. I decided to port it from QBASIC to JavaScript for use on the web. I like this factorial calculator because it is better than anything else on the web. It even beats Google's which tops out at 170! and doesn't yield all the digits.