Short for numeric lock or number lock, the Num key, Num Lock, or Num Lk key is on the top-left corner of a keyboard's numeric keypad. The Num Lock key enables and disables the numeric pad. When Num Lock is enabled, you can use the numbers on the keypad.

Num Lock or Numeric Lock (⇭) is a key on the numeric keypad of most computer keyboards. It is a lock key, like Caps Lock and Scroll Lock. Its state affects the function of the numeric keypad commonly located to the right of the main keyboard and is commonly displayed by an LED built into the keyboard.

Search your keyboard for Function key (Fn) and Number Lock key (NumLk). 2. Hold these two keys, “ Fn + NumLk, ” to enable or disable the Num Lock feature on your device.