# Find the GCF 28 , 20 , 40

, ,
Find the common factors for the numerical part:
The factors for are .
The factors for are all numbers between and , which divide evenly.
Check numbers between and
Find the factor pairs of where .
List the factors for .
The factors for are .
The factors for are all numbers between and , which divide evenly.
Check numbers between and
Find the factor pairs of where .
List the factors for .
The factors for are .
The factors for are all numbers between and , which divide evenly.
Check numbers between and
Find the factor pairs of where .
List the factors for .
List all the factors for to find the common factors.
:
:
:
The common factors for are .
The GCF (HCF) of the numerical factors is .
Find the GCF 28 , 20 , 40

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