Common multiples and factors

What are the first 5 multiples of 16?

• 1, 2, 4, 8, 16

• 16, 32, 48, 64, 80

• 16, 22, 38, 44, 50

• 1, 2, 3, 4, 5

What are the factors of 25?

• 1, 2, 3, 5, 10, 15, 25
• 1, 5,  25
• 1, 25
• 1, 5

List all the factors of 12

• 1, 2, 3, 4, 6, 12
• 1, 2, 4, 12
• 1, 12
• 1, 2, 3, 4, 5, 6, 12

Is 3 a factor of 12?

• yes
• no

Which are the factors of both 6 and 15?

• 9

• 5

• 6

• 3

What are the common multiples of 3 and 7?

• 1

• 21

• 35

• 42

What are the common multiples of 6 and 8 ?

• 12

• 24

• 48

• 36

What is the common multiple of 15 and 10?

• 15

• 25

• 30

• 20

What are the common factors of 12 and 18?

• 2

• 1

• 3

• 4

List the first 5 MULTIPLES of 3

• 3, 6 10, 15, 20
• 1, 3, 2, 6, 4
• 3, 6, 9, 12, 15
• 6, 9, 12, 15, 18