noun Mathematics.

a number by which another number, the dividend, is divided.
a number contained in another given number a certain integral number of times, without a remainder.

Origin of divisor

1425–75; late Middle English < Latin dīvīsor, one who divides, equivalent to dīvīd- (variant stem of dīvidere to divide) + -tor -tor
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for divisor

Historical Examples of divisor

  • Every divisor is a gift of God, and corresponds to the months of the year and to the revolution of the universe.



  • The only number composed only of ones that we know with certainty to have no divisor is 11.

    The Canterbury Puzzles

    Henry Ernest Dudeney

  • Nobody in the world knows yet whether that number has a divisor or not.

    The Canterbury Puzzles

    Henry Ernest Dudeney

  • When the last of the divisor must not be set below the last of the dividend.

  • It is simple division: wealth the dividend, number of children the divisor.

British Dictionary definitions for divisor



a number or quantity to be divided into another number or quantity (the dividend)
a number that is a factor of another number
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

Word Origin and History for divisor

early 15c., Latin agent noun from dividere (see divide (v.)).

Online Etymology Dictionary, © 2010 Douglas Harper

divisor in Science



A number used to divide another. In the equation 15 ÷ 3 = 5, 3 is the divisor.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.