Grade 3 Mathematics Quiz: HCF and LCM

Question 1: What is the highest common factor of 12 and 18?

• 6

• 15

• 3

• 9

Question 2: Find the HCF of 24 and 36.

• 12

• 30

• 18

• 6

Question 3: Determine the highest common factor of 15 and 25.

• 10

• 3

• 20

• 5

Question 4: Calculate the HCF of 8 and 12.

• 4

• 2

• 6

• 10

Question 5: What is the highest common factor of 30 and 45?

• 25

• 10

• 15

• 20

Question 6: What is the least common multiple of 5 and 8?

• 40

• 25

• 13

• 10

Question 7: Find the LCM of 6 and 9.

• 24

• 18

• 10

• 15

Question 8: Determine the least common multiple of 10 and 15.

• 25

• 20

• 35

• 30

Question 9: Calculate the LCM of 4 and 7.

• 20

• 3

• 11

• 28

Question 10: What is the least common multiple of 12 and 18?

• 36

• 24

• 30

• 42