drslmitchell drslmitchell

21-10-2015
Mathematics

Answered

What is the greatest common factor for 21 and 40?

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JakesBabe JakesBabe

21-10-2015

The only common factor is 1. So that's the greatest.

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pinkpower2003 pinkpower2003

21-10-2015

To get the Greates Common Factor (GCF) of 21 and 40 we need to factor each value first and then we choose all the copies of factors and multiply them:

21: 3 740: 222 5 GCF: The Greates Common Factor (GCF) is: 1

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