Factors and multiples 1 OG

Choose all the PRIME numbers

• 1

• 2

• 3

• 5

A COMPOSITE number has:-

• Exactly 2 factors

• Less than 2 factors

• More than 2 factors

• No factors

List the first (4) multiples of 8

• 1, 2, 4, 8

• 8, 16, 24, 32

Find ALL FACTORS of 24

• 1, 2, 12, 24

• 1, 2, 8, 24

• 1, 2, 3, 4, 5, 6, 8, 12, 24

• 1, 2, 3, 4, 6, 8, 12, 24

Which is a NOT a factor of 9?

• 0
• 1
• 3
• 9

Which are factors of 20?

• 2,10,5,4,1,20

• 3,5,7,9

• 40,80,100

• 15,25,35

what are factors of 42?

• 1,42,2,21,7,6

• 2,24

• 48,2

• 3,4,7,8

Sarah is counting by 8s. She lists the numbers 8, 16, and 24. Some other numbers Sarah could list are ________ and ________.

• 2 and 4

• 16 and 32

• 32 and 64

• 40 and 49

Is 100 a prime or composite number?

• Prime
• Composite

Which of the following is a common factor of 12 and 36?

• 9

• 18

• 4

• 5