number theory

noun Mathematics.
the study of integers and their relation to one another.
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Nearby words
 number one wood,
 number opera,
 number seven iron,
 number sign,
 number ten,
 number three wood,
 number two,
 number work,
 numbercruncher,
 numbered account
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. 2019
Examples from the Web for number theory
With the further development of the numbertheory Pythagoreanism becomes entirely arbitrary and without principle.
A Critical History of Greek PhilosophyW. T. Stace
number theory
noun
the study of integers, their properties, and the relationship between integers
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