Trailing `1` in GolfScript factorial code

Question

I'm trying out the first GolfScript code from here:

4{:n;1:c;{n 1>}{n c*:c;n 1-:n;}while c}:f;f

This outputs 241, which has a redudant 1 at the end. I can't even remove this using ; at the end of the code. Is this a bug?

Answer 1

I don't know what is exactly wrong, but n makes a lot of bugs.
So just change the name of variable n to something like i.