number theory

Study of integers

Number theory is the branch of mathematics concerned with the properties and relationships of integers—particularly prime numbers, divisibility, and patterns among whole numbers.

Though often pursued for pure intellectual interest, number theory underlies modern cryptography: Public-key encryption relies on number theory.

Problems in number theory can be deceptively simple to state but fiendishly difficult to prove.

divisibility

factorization

Decomposing into multiplicative parts

residue · quotient · abundant · deficient

arithmetic

Ramanujan

  • HardyName connoting toughness
cryptography

RSA

Public-key encryption algorithm

Diffie-Hellman · digital signature · cryptanalysis · post-quantum · pseudorandom · secure communication

analytic

density

Mass-to-volume ratio

Categories
Opposites
mathematical abstraction vs. application

number theoryapplied mathematics

Problem-solving through quantitative methods

statistics · econometrics

discrete vs. continuous mathematics

number theorycalculus

Mathematical analysis system

differential equations · analysis · topology

mathematical object of study

number theorygeometry

Science of spatial relationships

topology · graph theory

Family

number, theory, numbers, numbered, numbering, numerical, enumerate, innumerable, numberless

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Abstract · Rated G