A Read and understand each question carefully, then write the letter of your answer on the space provided before each number. C 1. What are the prime factors of 30? a. 2 x 2 x 5 b, 2 x 3 x 5 c. 3 x 5 x 5 d. 2 x 15 2. Which of the following set of numbers has common factors of 1, 2, and 4? a. 6 and 8 b. 10 and 12 c. 16 and 20 d. 18 and 24 3. Which shows the prime factorization of 36? a 2 x 2 x 3 x 3 b. 2 X 3 X 3 X 3 c. 2 X 18 d. 3 x 12 d 4. What are the first three common multiples of 3 and 4? a. 9,12 and 16 b. 12, 16 and 24 c. 12,24 and 36 d. 16,24 and 36 5. Which set of numbers has common multiples of 24 and 48? a. 3 and 9 b. 4 and 9 c.6 and 8 d. 8 and 9​