factor

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factor,

in arithmetic, any number that divides a given number evenly, i.e., without any remainder. The factors of 12 are 1, 2, 3, 4, 6, and 12. Similarly in algebra, any one of the algebraic expressions multiplied by another to form a product is a factor of that product, e.g., a+b and ab are factors of a2b 2, since (a+b)(ab)=a2b2. In general, if r is a rootroot,
in mathematics, number or quantity r for which an equation f(r)=0 holds true, where f is some function. If f is a polynomial, r is called a root of f; for example, r=3 and r
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 of a polynomialpolynomial,
mathematical expression which is a finite sum, each term being a constant times a product of one or more variables raised to powers. With only one variable the general form of a polynomial is a0xn+a1x
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 equation f(x)=0, then (xr) is a factor of the polynomial f(x).

factor

[′fak·tər]
(mathematics)
For an integer n, any integer which gives n when multiplied by another integer.
For a polynomial p, any polynomial which gives p when multiplied by another polynomial.
For a graph G, a spanning subgraph of G with at least one edge.
(statistics)
A quantity or a variable being studied in an experiment as a possible cause of variation.

factor

1. Maths
a. one of two or more integers or polynomials whose product is a given integer or polynomial
b. an integer or polynomial that can be exactly divided into another integer or polynomial
2. Med any of several substances that participate in the clotting of blood
3. Law, Commerce a person who acts on another's behalf, esp one who transacts business for another
4. former name for a gene
5. Commercial law a person to whom goods are consigned for sale and who is paid a factorage
6. (in Scotland) the manager of an estate

factor

A quantity which is multiplied by another quantity.

See also divisor.

factor

A number that divides evenly into another number. For example, 3 and 4 are factors of 12. See factorial and IFP.
References in periodicals archive ?
Objective: To determine the visual outcome and its prognostic factors in patients presenting with ocular war injuries.
Rami-Porta R, Bolejack V, Crowley J, et al; lASLC Staging and Prognostic Factors Committee, Advisory Boards, and Participating Institutions.
Situation of neck lymph nodes is the most important factor among the prognostic factors in TCs and there is no radiological and/or biological marker that certainly proves their situation.
Supratentorial low-grade glioma in adults: an analysis of prognostic factors and timing of radiation.
Patients with a greater number of poor prognostic factors despite treatment had smaller reductions in clinical disease activity index (CDAI) and were less likely to achieve low disease activity (LDA)/remission following their treatment, said Joel M.
16) in which favorable patients were excluded, the number of metastasis sites was not correlated with the survival, while the presence of liver metastasis was an independent prognostic factor.
The main established prognostic factors are tumour size and differentiation grade, spreading to armpit lymph nodes, hormone receptor status and HER2-positivity.
Our multivariate analysis aiming to verify the factors adversely affecting survival revealed that DM was an independent prognostic factor.
Herein, we report our experience with treating open globe injuries and determine the prognostic factors of visual outcome.
10) Tumour length was significant prognostic factor with improved five-year survival in patients with tumour length of 4 cm or less.
The size of the perforation was found to be a prognostic factor by Ophir et al.
4] Extremes of age may be considered a important prognostic factor, as this study also showed a higher mortality (25%) in patients aged above 51 years.