What's More Direction Find the Common Factors and Greatest Common Factor using the indicated method
1. Listing Method 8 and 12
Common Factors____ GCF ____
2. Factor-Tree Method 9 and 18
Common Factors____ GCF ____
3. Continuous Division Method 10 and 20 Common Factors____ GCF ____
4. Which of these is the product of its prime factors of number 12?
A. 2 x 2 x 3
B. 2x3x3
C. 2 x 2 x 2 x 2
D. 2 x 2 x4
5. Which are the factors of 16?
A. 1, 2, 4, 8, 16
B.3.4.6.16
C. 1.4. 16
D. 3. 4.8. 10
6. What factors are common to 20 and 40?
A. 1, 2,5
B. 2, 3, 5, 10
C. 1, 2, 4.5, 10, 20
D. 8.10.20
7. The factors of 45 and 9 are: 9 = 1, 3, 9 45 = 1.3.5.9. 15 45. What is the greatest common factor of 9 and 45?
A. 5
B. 9
C.15
D. 45
8. Which of these is the greatest common factor of 16 and 20?
A.4
B. 6
C. 10
D. 12​