number pad not working

Maybe you pressed the Option key 5 times and enabled Mouse Keys. Try pressing the Option key 5 times to turn it off.

Control the pointer using Mouse Keys on Mac - Apple Support

"Note: When Mouse Keys is on, you can’t use the keyboard or a numeric keypad to enter text."

bigdrag Said:

"number pad not working: My apple keyboard number pad has quit working?"

-------

Mac mini keyboard 

Applies to Intel-Based Macs Only) Sometimes changes are made that require in the system caches to be reset. Resetting this just might do the trick. So, first attempt this by using your keyboard:

• Reset your NVRAM
• Reset your SMC