# common divisor

- a number that is a submultiple of all the numbers of a given set.

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## Origin of common divisor^{}

First recorded in 1840–50

Also called common factor.

Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

## common factor

- a number or quantity that is a factor of each member of a group of numbers or quantities5 is a common factor of 15 and 20 Also called: common divisor

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## common divisor

- another name for common factor

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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

## common divisor

- A number that is a factor of two or more numbers. For example, 3 is a common divisor of both 9 and 15. Also called common factor

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The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.