c. 3 x 3 x 9 a. 2 x 3 x 3 x 3 16 = b. 3 x 3 x 3 x 5 d. 3х3х3х3х3 24 3. What is the common multiple of 6 and 8? d. 2 4 c. 3 b. 6 a. 12 b 4. What is the common multiple of 10 and 14? a. 140 b. 70 C. 14 d. 7 b 5. The LCM of 15 and 9 is, b. 45 a. 135 C. 15 d. 3 a 19 6. The LCM of 18 and 30 is, a. 126 b. 90 C. 60 d. 240 7. The common factor of 15 and 25 is, a. 35 b. 15 c. 25 d. 5