Adjective
number-theoretical (not generally comparable, comparative more number-theoretical, superlative most number-theoretical)
(mathematics) Of or relating to number theory.
The simple question of which numbers are divisible by others leads directly into many deep number-theoretical questions.
Whatever finite collection of number-theoretical axioms is taken as a foundation, Gödel showed how to construct a formal statement that is a true number-theoretical fact, but which does not follow from those axioms. Source: Internet
While many difficult computational problems outside number theory are known, most working encryption protocols nowadays are based on the difficulty of a few number-theoretical problems. Source: Internet