# 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
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
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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

## 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
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

## factor

A quantity which is multiplied by another quantity.

## factor

A number that divides evenly into another number. For example, 3 and 4 are factors of 12. See factorial and IFP.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
Verkooyen, "Tubal factor pathology caused by Chlamydia trachomatis: The role of serology" International Journal of STD and AIDS, vol.
Infertility type was cervical factor (n = 276); dysovulation (n = 91); PCOS (n = 205); endometriosis (n = 35); tubal factor (n = 44); male factor (n = 153); and unexplained infertility (n = 447).
In vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) was done in patients who had associated causes like tubal factor infertility or were unable to conceive spontaneously during 1 year.
Patients with unilateral tubal patency on hysterosalpingogram were considered to have tubal factor infertility.
Different categories of infertility diagnosis and the corresponding success rate for each Infertility Number of Pregnant p-value diagnosis patients (%) AMA only 18 (5.90%) 2 (11.11%) AMA + others 12 (3.52%) 1 (8.33%) High FSH 37 (10.85%) 1 (2.70%) (all patients) Hyperprolactinemia 11 (3.23%) 0 Hypogonadotrophy 3 (0.87%) 0 Hypothyrodism 6 (1.76%) 0 0.571 Endometriosis 3 (0.87%) 0 (Overall) Mild male 56 (16.42%) 6 (10.71%) factor only Mild male 25 (7.23%) 2 (8%) factor + others PCOS only 53 (15.54%) 10 (18.87%) 0.011 PCOS + others 17 (4.99%) 1 (5.88%) Tubal factor 14 (4.11%) 2 (14%) 0.286 only (One side) Tubal factor + 18 (5.28%) 1 (5.56%) others Undiagnosed 71 (20.82%) 6 (8.45%)
But the present study showed pelvic infections predisposing to ectopic pregnancy did not reach statistical significance among natural conceptions (P value--0.151), while tubal factor in infertile subjects was a significant risk factor for ectopic pregnancy (OR 8.48, 95% CI = 1.94 to 68.83, P value 0.017).
Comparison of hysterosalpingography and laparoscopy in infertile Iranian women with tubal factor. Ginekol Pol 2012;83(11):841-3.
Although, infection with this organism can be asymptomatic in up to 80% of women (2), it may give rise to urethral syndrome, salpingitis, pelvic inflammatory disease (PID), tubal factor infertility and chronic pelvic pain (3).
The success rates make operative Laparoscopy a "highly effective" treatment for tubal factor infertility; endometriosis, or a combination of the two, said Dr.
INTRODUCTION: With the increasing incidence of sexually transmitted diseases and other pelvic inflammatory disease (PID), incidence of tubal factor of infertility is on the rise.
This is an important finding, because most women with tubal factor infertility have no clinical history of prior symptomatic pelvic inflammatory disease (PID), and it's thought that subclinical PID may actually be an underlying cause.
i) Evaluation of tubal factor prior to ovulation induction (20)

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