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 ?
Statistical analysis was performed to determine prognostic factors, which may have distinguished survivors and non-survivors.
Important Prognostic Factors for t(8;21) and inv(16) Acute Myeloid Leukemia t(8;21) inv(16) * KIT gene mutation (exon 17) * KIT gene mutation (exon 17) adversely affects the prognosis adversely affects the prognosis * Prognostic significance of * Patients with trisomy 22 have del(9q) is debatable a lower risk of relapse
Pelizzo MR, Boschin IM, Toniato A, Piotto A, Bernante P, Pagetta C, Rampin L, Rubello D: Papillary thyroid microcarcinoma (PTMC): prognostic factors, management and outcome in 403 patients.
Prognostic factors for survival in advanced non-small-cell lung cancer: univariate and multivariate analyses including recursive partitioning and amalgamation algorithms in 1,052 patients.
The relationship between tumor markers and well-known prognostic factors suggests their potential prognostic value.
ICU mortality and prognostic factors for patients with solid tumours who are admitted to the ICU, however, are unclear.
The authors reported p53 expression was associated with poorer OS in univariate analysis but was not independent prognostic factor in multivariate analysis (1).
Circulating tumor cells: a novel prognostic factor for newly diagnosed metastatic breast cancer.
Significant adverse prognostic factors were age, male sex, diabetes mellitus, and dementia.
Overexpression of the oncogene c-erbB-2 (HER2/neu) in ovarian cancer: a new prognostic factor.
Results showed that BCI was the only significant prognostic factor beyond standard clinical variables for late distant recurrence (5-10 years) (p=0.