Study

Factors, Multiples and Primes

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What is the LCM of 11 and 3?

33

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 6 and 5?

30

What is the LCM of 4 and 8?

8

What is the HCF of 14 and 35?

7

Is 1 prime?

No

List the factors of 24

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

List the factors of 30

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

What is the 4th prime number?

7

List the factors of 8

1, 2, 4, 8

What is the HCF of 18 and 36?

18

Write 28 as a product of prime factors

2x2x7

What is the 9th multiple of 3?

27

List the factors of 26

1, 2, 13, 26

Write 15 as a product of prime factors

3x5

What is the 8th multiple of 4?

32

What are the first 5 multiples of 6

6, 12, 18, 24, 30

What is the HCF of 11 and 20?

1

What is the 5th prime number?

11

What is the LCM of 6 and 4?

12

Is 2 prime?

Yes