Is one a prime number?

[Chronos]

The problem is that if you have a parenthesis at the end of a URL, even if it’s not supposed to be part of the URL, it screws up things.

Unless, of course, it is supposed to be part of the URL, in which case it often seems to screw up the other way.

[Contrapuntal]

@Wendell_Wagner

This should work:

Prime Number -- from Wolfram MathWorld

The problem is that if you have a parenthesis at the end of a URL, even if it’s not supposed to be part of the URL, it screws up things. Indeed, if a link doesn’t work, I would suggest that posters try messing around with things like removing and moving parentheses rather than immediately complaining that it doesn’t work.

Why do you call that a complaint? It seemed more like an observation to me. Stating a fact is not complaining.