Answer:
GCF = 3
Step-by-step explanation:
The factors of 3 are: 1, 3
The factors of 12 are: 1, 2, 3, 4, 6, 12
The factors of 54 are: 1, 2, 3, 6, 9, 18, 27, 54
Then the greatest common factor is 3.
6
6 goes into 12 twice and 6 goes into 54 8 times
