how do i factory reset my iphone 5 if i forgot the passcode

I understand that you are referring to the passcode that is used to get to the Home Screen of your iPhone. I also understand that your iPhone has been disabled. You will have to reset the passcode to your iPhone by following the instructions in this guide published by Apple 👉  If you forgot the passcode or if your iPhone has been disabled. You will need a computer to execute this procedure and all the data on your iPhone will be erased.

Axel F.