My numpad doesn't work.

In game if I put a thruster down and set it to trust when I press 9 it doesn’t, in fact no number works for any tool. Help.

Make sure NUM lock is on. Usually a keyboard has 3 lights in the top right corner. Press the num lock key and one of them should come on, then the numpad should work.

It doesn’t work, I have tried to reinstall Gmod but no luck.

Can you type numbers with the numpad on other applications like notepad or in the browser?

Are you using a laptop?

No a PC
and djjkxbox yes I can