An example of the greatest common factor?

Answer 1

Example: 30 and 42

1, 2, 3, 5, 6, 10, 15, 30

1, 2, 3, 6, 7, 14, 21, 42

These are the factors of 30 and 42. The numbers that appear on both lists are common factors. Of those, the largest one (indicated in bold) is the GCF.

Answer 2

example of common factor:

9:1,3,9

3:1,3

example of greatest common factor:

20:1,2,4,5,10,20

40:1,2,4,5,8,10,20,40

Answer 3

Example: 30 and 42

Factor them.

2 x 3 x 5 = 30

2 x 3 x 7 = 42

Select the common factors.

2 x 3 = 6, the GCF

Answer 4

The lowest common factor of any set of positive integers is 1.

Answer 5

3 is the greatest common factor of 9 and 12.

Answer 6

Example: 30 and 42

Factor them.

2 x 3 x 6 = 30

2 x 3 x 7 = 42

Select the common factors.

2 x 3 = 6, the GCF

Answer 7

Example: 30 and 42

2 x 3 x 5 = 30

2 x 3 x 7 = 42

2 x 3 = 6, the GCF

Answer 8

To simplify fractions.