(computing) A key on a standard extended keyboard which, when pressed, toggles the keys of the numeric keypad between cursor control functions and numeric digits.

(rare) Synonym of nunchaku

plural of num-chuk

Of or relating to the ancient Celtiberian city of Numantia.

(mathematics, number theory) The field of study dealing with computational methods for investigating and solving problems in number theory and arithmetic geometry.

Synonym of computational number theory.

(mathematics) Any integer that is the sum of n natural numbers from 1 to n.

An ordinal number that distinguishes a monarch from others of the same name.

(logic) A number uniquely assigned to each symbol, and to each well-formed formula of some formal language.

(number theory) Any number of the form k·2ⁿ + 1, where k is odd, n is a positive integer, and 2ⁿ > k.