Day 4 Class 5 Prime and Composite Numbers

Multiple Choice

Which of the following is a prime number?

• 15

• 17

• 21

• 27

Multiple Choice

The number 2 is the only even prime number.

• True

• False

Multiple Choice

Which number is composite?

• 5

• 7

• 9

• 13

Open Ended

Why is the number 1 neither prime nor composite?

Multiple Choice

When arranging 6 cubes, which factor pair is possible?

• 1 × 5

• 2 × 3

• 7 × 1

• 11 × 1

Multiple Select

Which of these numbers are prime?

• 29

• 33

• 39

• 41

Match

Match the number with its type:

• 19

• 20

• 21

• 23

Prime

Composite

Composite

Prime

• Prime

• Composite

• Composite

• Prime

Multiple Choice

How many prime numbers are between 50 and 60?

• 2

• 3

• 4

• 5

Multiple Choice

All prime numbers are odd.

• True

• False

Match

Arrange the following into categories:

• 5

• 7

• 9

• 12

• 15

Primes

Primes

Composites

Composites

Composites

• Primes

• Primes

• Composites

• Composites

• Composites

Multiple Choice

How many prime numbers are there between 1 and 20?

• 6

• 7

• 8

• 9

Open Ended

Find three consecutive composite numbers.