Find greatest common factor of each set of numbers

1. 8 and 12

2. 10,15 and 30

3. 18,36 and 60

1. 4

2. 5

3. 3

That's the answers

GCF of 8 and 12 is 4

The factors of 8 are 1,2,4,8

The factors of 12 are 1,2,3,4,6,12

GCF of 10,15, and 30 is 5

The factors of 10 is 1,2,5,10

The factors of 15 is 1,3,5,15

The factors of 30 is 1,2,3,5,6,10,15,30

GCF of 18,36, and 60 is 6

The factors of 18 is 1,2,3,6,9,18

The factors of 36 is 1,2,3,4,6,9,12,18,36

The factors of 60 is 1,2,3,4,5,6,10,12,15,20,30,60