Factors, Multiples, Lcm, HCF

Which of these is a factor of 15?

• 3

• 10

• 9

• 7

Which is NOT a factor of 24?

• 6

• 4

• 5

• 12

What are the common factors of 14 and 7 ?

• 1, 7

• 1, 5

• 2, 14

• 3 , 7

Which shows the common factors of 5 and 10?

• 2, 3

• 1, 5 , 10

• 1, 2, 3

• 4, 5, 6

Which shows the first 4 multiples of 3 ?

• 0, 2, 3, 6

• 1, 2 , 3 , 4

• 3, 12, 18 , 15

• 3, 6 , 9 , 12

6 is a multiple of 10. True or False?

• True

• False

Which of these numbers is a factor of EVERY even number?

• 4

• 1

• 2

• 10

Which shows the first 5 multiples of 5?

• 5, 15, 25, 30

• 5, 10 , 15 , 20 , 25

• 1, 5 , 10, 15 , 20

Which of these is a prime number?

• 11

• 15

• 20

• 25

How many factors does the number 12 has?

• 0

• 5

• 7

• 6