Answer:

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

• The factors of 30 are: 1, 2, 3, 5, 6, 10, 15, 30

• The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42

Then the greatest common factor is 6.

Step-by-step explanation:

#BRAINLY

Answer:

THE GCF OF 12 IS 3

THE GCF OF 30 IS 15

THE GCF OF 42 IS 2