Study

Factors, Multiples and Primes

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Is 2 prime?

Yes

What is the LCM of 4 and 8?

8

What is the LCM of 6 and 5?

30

List the factors of 24

1, 2, 3, 4, 6, 8, 12, 24

What is the 4th prime number?

7

What is the HCF of 6 and 15

3

What are the first 5 multiples of 7

7, 14, 21, 28, 35

What is the LCM of 11 and 3?

33

Write 15 as a product of prime factors

3x5

List the factors of 8

1, 2, 4, 8

What is the 5th prime number?

11

What is the HCF of 11 and 20?

1

List the factors of 26

1, 2, 13, 26

List the factors of 30

1, 2, 3, 5, 6, 10, 15, 30

What is the 8th multiple of 4?

32

What is the LCM of 6 and 4?

12

Write 28 as a product of prime factors

2x2x7

Is 1 prime?

No

What is the 9th multiple of 3?

27

What is the HCF of 14 and 35?

7

What is the HCF of 18 and 36?

18

What are the first 5 multiples of 6

6, 12, 18, 24, 30