Definitions:
a circumstance, fact, or influence that contributes to a result

a number or quantity that when multiplied with another produces a given number or expression

a level on a scale of measurement.

any of a number of substances in the blood, mostly identified by numerals, which are involved in coagulation.

an agent who buys and sells goods on commission

organize (the source code of a piece of software) into different components that are easier to maintain and work with

(of a company) sell (its invoices) to a factor