Originally Posted by techone
Now if only they made an online calculator to do it for you, like Sheldon's gear calculator.
Sure, and then you'll have people trying to factor PGP keys using your website.
Originally Posted by techone
Is it right that if your highest common factor is 1, then you have a skidpatch for every tooth on the cog?
Yes, that's called relatively prime.
If so, I guess that's another reason to have a larger drivetrain.
Not necessarily. For relative primeness it's better to be 47/16 than 64/16 (or even 48/16).