number theory

noun Mathematics.

the study of integers and their relation to one another.

Origin of number theory

First recorded in 1910–15

Also called theory of numbers.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for number theory

Historical Examples of number theory

With the further development of the number-theory Pythagoreanism becomes entirely arbitrary and without principle.
A Critical History of Greek Philosophy
W. T. Stace

British Dictionary definitions for number theory

number theory

noun

the study of integers, their properties, and the relationship between integers

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012