Number Theory

Tick all the factors of 24

• 2

• 3

• 4

• 5

• 6

Tick all the factors of 20

• 2

• 3

• 4

• 5

• 6

Tick all the factors of 27

• 2

• 3

• 4

• 5

• 6

Find the product of 5 x 7

• 25

• 35

• 45

• 55

Find the product of 6 x 9

• 50

• 52

• 53

• 54

Tick all the multiples of 8

• 16

• 21

• 24

• 32

• 48

Tick all the multiples of 6

• 12

• 21

• 24

• 36

• 44

Is 23 a prime number or a composite number?

• Prime number

• Composite number

Is 24 a prime number or a composite number?

• Prime number

• Composite number

Tick all the prime numbers

• 17

• 18

• 19

• 20

• 21