Number and patterns quiz FACTORS MULTIPLES PRIMES INDICES PRODUCT OF PRIMEs FACTORS LCM HCF

1. Which number is a multiple of 3 and a factor of 24 A) 15 B) 9 C) 12 D) 18

2. Numbers that have only 2 factors are called: A) multiples B) prime C) factors D) index numbers

3. 2,4,6,8… are examples of ________ of 2 A) multiples B) prime C) factors D) index numbers

4. 1,2,5,10… are examples of ________ of 10 A) multiples B) prime C) factors D) index numbers

5. Name a common multiple of 8 and 9 A) 18 B) 40 C) 24 D) 72

6. What is the hcf of 24 and 36 A) 39 B) 24 C) 12 D) 5

7. Write down: the factors of 8! 1,2,4,8

8. Write down: the multiples of 8 between 10 and 30 16,24

9. Write down: the prime numbers between 10 and 20! 11,13,17,19

10. Write down: the number 2 x 2 X 2 X 2 IN INDEX FORM! 24

11. Write down: the PRODUCT OF 11 AND 2 22

12. Write down the hcf of 15 and 25!

13. Write down the lcm of 12 and 8 24

14. 36, 53 and 72 are multiples of 9 TRUE FALSE

15. 12 is a common factor of 20 and 36 TRUE FALSE

16. The value of 33 is 9 TRUE FALSE 3 x 3 x 3 = 27

17. The prime factors of 99 are 9 and 11 TRUE FALSE 9 is not prime

18. Express 32 as a product of prime factors in index form 2 x 2 x 2 x 2 x 2 = 25

19. 27 is a prime number TRUE FALSE

Square, Triangular or Rectangular? 1, 3, 6, 10, 15 36, 64, 81 1, 4, 9, 16 12 27 Triangular Square Square Rectangular Rectangular