(mathematics) Of or relating to number theory.

(mathematics) The branch of pure mathematics concerned with the properties of integers.

(mathematics) A mathematician who specializes in number theory

(mathematics) By means of, or in terms of, number theory.

(somewhat rare) A number theorist.

(mathematics) Relating to number theory

(mathematics, number theory) The branch of number theory in which number-theoretic questions are expressed in terms of properties of algebraic number fields or related objects, and studied using techniques from algebra.

plural of number-theoretic function

(mathematics) a real or complex valued function of n defined on the set of natural numbers that expresses some arithmetical property of n.

(number theory) The theorem that the number of prime numbers less than n asymptotically approaches n / ln(n) as n approaches infinity.