Home›Number Theory›All Number TheoryBrowse ByAll Number TheoryReference and ClassificationDevelopingNamed numbers, sequences and number-theoretic functions studied as individual objects. Belongs here: the Fibonacci Sequence and the Golden Ratio it converges toward; the Gaussian Integers, the ring of complex numbers with integer real and imaginary parts; the Riemann Zeta Function, whose zeros are the subject of the Riemann Hypothesis. Does not belong here: the general theory of numbers, the branch entity Number Theory, and algebraic structures whose interest is primarily group- or lattice-theoretic rather than number-theoretic, such as the E8 Lattice, filed under Algebra above because that is the cluster its own live SubLabel already carries.FactsAll Number TheorySourcesComments (0)Reader Challenges (0)FactsComparisonEra Of EmergenceWell-attested1800 BCE 1All Number TheoryFilter Results77 entriesObject KindAllAlgebraic Structure (1)Equation (6)Functions (20)Geometric Shape (1)Mathematical Notation (1)Mathematical Property (1)Number Systems (37)Operator (Mathematics) (1)Sequence (7)Series (6)Sets (1)BranchAllAlgebra (1)Algebraic Number Theory (3)Analysis (2)Analytic Number Theory (6)Arithmetic (4)Complex Analysis (1)Geometry (1)Number Theory (52)Origin EraAll-1800 (1)-300 (1)1202 (1)1579 (1)1644 (1)1683 (1)1713 (1)1763 (1)1816 (1)1829 (1)1832 (2)1844 (1)1859 (1)1885 (1)1897 (1)1904 (1)1910 (2)1915 (1)1918 (1)1938 (1)1995 (1)1997 (1)Introduced ByAllAdrien-Marie Legendre (1)August Ferdinand Möbius (1)Carl Friedrich Gauss (2)Carl Gustav Jacob Jacobi (1)Fabrice Bellard (1)Franz Mertens (1)Gerolamo Cardano (1)Gotthold Eisenstein (1)Harvey Dubner (1)Henry Briggs (1)Ivan Niven (1)Jacob Bernoulli (2)Johann Faulhaber (1)Joseph Liouville (1)Kurt Hensel (1)Leonardo of Pisa (1)Leonhard Euler (3)Leopold Kronecker (1)Luca Pacioli (1)Marin Mersenne (1)Niccolò Fontana Tartaglia (1)Oskar Perron (1)Pafnuty Chebyshev (1)Peter Gustav Lejeune Dirichlet (1)Pierre de Fermat (1)Robert Carmichael (2)Sophie Germain (1)Édouard Lucas (1)Named AfterAllAdrien-Marie Legendre (1)Leonhard Euler (2)Srinivasa Ramanujan (1)Finite or InfiniteAllInfinite (1)VisualisableAllYes (1)Show ResultsBrowseCompareSelect all 50Amicable NumbersNumber TheoryArithmetic FunctionNumber TheoryBellard's FormulaNumber TheoryBernoulli NumberNumber TheoryCarmichael FunctionNumber TheoryCarmichael NumberNumber TheoryCentered Pentagonal NumberNumber TheoryCentered Polygonal NumberNumber TheoryCentered Triangular NumberNumber TheoryChebyshev FunctionNumber TheoryComposite NumberNumber TheoryCongruent NumberNumber TheoryContinued FractionNumber TheoryDigital RootNumber TheoryDirichlet Eta FunctionNumber TheoryDiscriminant of an algebraic number fieldNumber TheoryEisenstein IntegersNumber TheoryElliptic CurveNumber TheoryEuler's NumberNumber TheoryEuler's Totient FunctionNumber TheoryFarey SequenceNumber TheoryFaulhaber's FormulaNumber TheoryFermat NumberNumber TheoryFibonacci SequenceNumber TheoryFractional partNumber TheoryGauss SumNumber TheoryGaussian IntegersNumber TheoryGolden RatioNumber TheoryGoogolNumber TheoryGreatest common divisorNumber TheoryHarshad NumberNumber TheoryHighly Composite NumberNumber TheoryIrrationality MeasureNumber TheoryJacobi Triple ProductNumber TheoryKronecker SymbolNumber TheoryLeast Common MultipleNumber TheoryLegendre's FormulaNumber TheoryLiouville NumberNumber TheoryLogarithmic Integral FunctionNumber TheoryLowest Common DenominatorNumber TheoryLucas NumbersNumber TheoryMersenne PrimeNumber TheoryMertens FunctionNumber TheoryMinkowski's Question-Mark FunctionNumber TheoryMöbius FunctionNumber TheoryModular ExponentiationNumber TheoryModular lambda functionNumber TheoryNumberNumber TheoryOdd NumberNumber TheoryP-adic Exponential FunctionNumber Theory12Next →Sources1. Number Theory (Wikipedia)tier 2Wikimedia FoundationHistory sectionQuote, History sectionThe earliest historical find of an arithmetical nature is the Plimpton 322, dated c. 1800 BC.View the SourceComments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.