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62

2 and 31

72

2 and 36

2 and 18

2 and 9

3 and 3

The only common factor shared by these numbers is 2

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The factors of 72 are:

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72

The factors of 96 are:

1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96

The common factors are:

1, 2, 3, 4, 6, 8, 12, 24

The Greatest Common Factor:

GCF = 24

72

36,2

18,2,2

9,2,2,2

3,3,2,2,2

Factor them.

2 x 3 x 3 x 3 = 54

2 x 2 x 2 x 3 x 3 = 72

Select the common factors.

2 x 3 x 3 = 18, the GCF.

72

36,2

18,2,2

9,2,2,2

3,3,2,2,2

84

42,2

21,2,2

7,3,2,2

2 x 2 x 3 = 12, the GCF

8x9=72

9x8=72

72 divided by 8=9

72 divided by 9= 8

Factor them.

2 x 2 x 2 x 5 = 40

2 x 2 x 2 x 3 x 3 = 72

Select the common factors.

2 x 2 x 2 = 8, the GCF

Factor them.

2 x 2 x 3 = 12

2 x 3 x 5 = 30

2 x 2 x 2 x 3 x 3 = 72

Select the common factors.

2 x 3 = 6, the GCF

GCF of 18 and 72 is 18

Q: How do you find the greatest common factor of 40 and 72?

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it is 40 because it is the greatest common factor for the numbers10 and 40

The greatest common factor of 1628 , 40 = 4

The Greatest Common Factor of 40 and 18 is 2.

The greatest common factor of 160 and 200 is 40.

The GCF is 4.

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it is 40 because it is the greatest common factor for the numbers10 and 40

The greatest common factor of 1628 , 40 = 4

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The greatest common factor of 84 , 40 = 4

8 is the greatest common factor for 48 and 40

The greatest common factor of 40 and 150 is 10.

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The greatest common factor of 156 , 40 = 4

The greatest common factor of 160 and 200 is 40.

Since 40 is a factor of 280, it is automatically the GCF.