Find the GCF 40 , 60 , 120

Math
40 , 60 , 120
Find the common factors for the numerical part:
40,60,120
The factors for 40 are 1,2,4,5,8,10,20,40.
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The factors for 40 are all numbers between 1 and 40, which divide 40 evenly.
Check numbers between 1 and 40
Find the factor pairs of 40 where x⋅y=40.
xy14022041058
List the factors for 40.
1,2,4,5,8,10,20,40
1,2,4,5,8,10,20,40
The factors for 60 are 1,2,3,4,5,6,10,12,15,20,30,60.
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The factors for 60 are all numbers between 1 and 60, which divide 60 evenly.
Check numbers between 1 and 60
Find the factor pairs of 60 where x⋅y=60.
xy160230320415512610
List the factors for 60.
1,2,3,4,5,6,10,12,15,20,30,60
1,2,3,4,5,6,10,12,15,20,30,60
The factors for 120 are 1,2,3,4,5,6,8,10,12,15,20,24,30,40,60,120.
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The factors for 120 are all numbers between 1 and 120, which divide 120 evenly.
Check numbers between 1 and 120
Find the factor pairs of 120 where x⋅y=120.
xy11202603404305246208151012
List the factors for 120.
1,2,3,4,5,6,8,10,12,15,20,24,30,40,60,120
1,2,3,4,5,6,8,10,12,15,20,24,30,40,60,120
List all the factors for 40,60,120 to find the common factors.
40: 1,2,4,5,8,10,20,40
60: 1,2,3,4,5,6,10,12,15,20,30,60
120: 1,2,3,4,5,6,8,10,12,15,20,24,30,40,60,120
The common factors for 40,60,120 are 1,2,4,5,10,20.
1,2,4,5,10,20
The GCF (HCF) of the numerical factors 1,2,4,5,10,20 is 20.
20
Find the GCF 40 , 60 , 120

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