About: Singly and doubly even

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In mathematics an even integer, that is, a number that is divisible by 2, is called evenly even or doubly even if it is a multiple of 4, and oddly even or singly even if it is not. The former names are traditional ones, derived from ancient Greek mathematics; the latter have become common in recent decades. These names reflect a basic concept in number theory, the 2-order of an integer: how many times the integer can be divided by 2. This is equivalent to the multiplicity of 2 in the prime factorization.

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rdf:type	disease
rdfs:label	Simple y doblemente par (es) 単偶数 (ja) Singly and doubly even (en) Par singular e par duplo (pt)
rdfs:comment	単偶数（たんぐうすう、英: singly even number）とは、2 で割り切れる（偶数である）が、4 では割り切れない整数である。半偶数（はんぐうすう）ともいう。「奇数の二倍」である整数ともいえる。単偶数に対して、4 で割り切れる整数は、複偶数（doubly even number、ふくぐうすう）または全偶数という。 (ja) Em matemática um inteiro par, isto é, um número que é divisível por 2, é chamado par duplo se for um múltiplo de 4 (se dividido por 2, resulta noutro número par), e par singular ou simplesmente par, se ele não é (sua divisão por 2 resulta num número ímpar). (pt) En matemáticas, un número par, es decir, un número que es divisible por 2, se llama parmente par o doblemente par si es múltiplo de 4, e imparmente par o simplemente par si no lo es. Los primeros nombres son tradicionales, derivados de la matemática griega, mientras que los segundos se han vuelto comunes en las últimas décadas. Estos nombres reflejan un concepto básico en teoría de números, el 2-orden de un número entero: cuántas veces el número entero se puede dividir por 2. Esto es equivalente a la multiplicidad de 2 en la factorización de un entero. (es) In mathematics an even integer, that is, a number that is divisible by 2, is called evenly even or doubly even if it is a multiple of 4, and oddly even or singly even if it is not. The former names are traditional ones, derived from ancient Greek mathematics; the latter have become common in recent decades. These names reflect a basic concept in number theory, the 2-order of an integer: how many times the integer can be divided by 2. This is equivalent to the multiplicity of 2 in the prime factorization. (en)
name	Multiples of 4 (en) Numbers congruent to 2 mod 4 (en)
dcterms:subject	Elementary number theory Integer sequences Parity (mathematics)
Wikipage page ID	2481457 (xsd:integer)
Wikipage revision ID	1108024099 (xsd:integer)
Link from a Wikipage to another Wikipage	Electron configuration Multiplicity (mathematics) Nondegenerate bilinear form Arf invariant Cyclic compound L-theory List of representations of e Powerful number Quadratic refinement Compact space Continued fraction Mathematics Geometric topology Nicomachus Organic chemistry Quotient Skew-symmetric graph Elementary number theory Combinatorics Half-integer Pi bond Tangent function Irrational number Irreducible fraction Law of excluded middle Absolute value Integer sequences Darts Euclid Feit–Thompson theorem Number theory P-adic number P-adic order Parity of zero Difference of two squares Infinite descent Quadratic form Prime number Topological K-theory Aromatic Parity (mathematics) Coding theory Divides Square root of 2 Fermat's theorem on sums of two squares Group theory Algebraic surgery theory Order (group theory) Rational number Rational numbers Signature (topology) Smooth manifold Nonabelian group Hückel's rule PlanetMath Even code Multiplicative group of integers modulo n Pronic number Bott periodicity Assume by contradiction Oriented manifold Framed manifold Ancient Greek mathematics Finite simple group Divisibility Prime factorization Cohomology group Even integer Spin manifold dbr:Lambert's_continued_fraction
Link from a Wikipage to an external page	http://planetmath.org/encyclopedia/SinglyEvenNumber.html
sameAs	Singly and doubly even Singly and doubly even Singly and doubly even Singly and doubly even Singly and doubly even Singly and doubly even Singly and doubly even
sequencenumber	A008586 (en) A016825 (en)
dbp:wikiPageUsesTemplate	dbt:Lang-grc dbt:Math dbt:OEIS_el dbt:Radic

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