**Multiple & Factors Worksheet-2**

- Find the least common multiple of 15 and 20

A. 30 B. 40 C. 60 D. 80

- Select the CORRECT statement.

A. A composite number is any number that has less than two factors.

B. A composite number has only two factors, one and itself.

C. A composite number is any number that has more than two factors.

D. A prime number is any number that has more than two factors.

- The prime factors of 24 are ____.

A. 2×2×2×2 B. 2×2×2×5 C. 2×3×3 D. 2×2×2×3

- Which of these is a prime number?

A. 19 B. 18 C. 21 D. 22

- Which list shows the factors of 28?

A. 1, 2, 3, 5, 12 B. 7, 14, 21

C. 2, 7, 14, 18 D. 1, 2, 4, 7, 14, 28

- Which option shows the least common multiple (LCM) of 15 and 30?

A. 30 B. 60 C. 15 D. 90

- Which option shows the least common multiple (LCM) of 12 and 18?

A. 24 B. 54 C. 90 D. 36

- Which list shows the factors of 24?

A. 1, 8, 12 B. 1, 7, 9 C. 1, 5, 12 D. 3, 5, 7

- The LCM of 12 and 9 is ______.

A. 21 B. 36 C. 35 D. 30

- Newport Mall has a painting exhibition on every 4th day. Bell View Mall has a painting exhibition on every 5th day. On what day will both the malls have a painting exhibition?

A. on the 15th day B. on the 20th day

C. on the 10th day D. on the 9th day

**Answer Key:**

(11)-C; (12)-C; (13)-D; (14)-A; (15)-D; (16)-A; (17)-D; (18)-A; (19)-B; (20)-B