Mouse keys got turned on somehow.

ku4hx wrote:

Your mouse has keys?

Mouse Keys is a longstanding feature of macOS. Mouse Keys allows the keyboard keys to be used for mouse input, when the mouse is not available or not working. Tapping the option key five times toggles it.

bryanmort wrote:

I cannot type in my password to get into my computer as one of the password numbers is 7, thus I cannot get into my Mac air M2 to reset the mouse keys settings to off.

Press the option key five times.

Your mouse has keys?