Encircle the letter of the correct answer:

1. what is the greatest common factors of 4, 8, 12?
A. 2 B. 4 C. 8 D. 12

2. What is the GCF of 6, 12, and 18?
A. 5 B. 6 C. 12 D. 18

3. What is the LCM of 8, 12, and 28?
A. 158 B. 160 C. 168 D. 178

4. 72 is the LCM of what number?
A. 5, 9, 36 B. 6, 9, 36 C. 7, 9, 36 D. 8, 9, 36

5. What is the LCM of 3, 9, and 12?
A. 34 B. 35 C. 36 D. 37

6. Mario was asked to find the GCF of 42 and 49. What number did he find?
A. 7 B. 12 C. 14 D. 18

12. What is the least number of apples than can be divided equally among three families having 9, 8, and 12 members?
A. 70 B. 71 C. 72 D. 73​