Phone Quiz - Factors and Multiples

Which of the following is a factor of 60?

• 7

• 15

• 23

• 31

Is 128 a multiple of 8?

• Yes

• No

What are the prime factors of 84?

• 2, 3, 7

• 2, 4, 21

• 2, 3, 14

• 3, 7, 12

Which of the following numbers is a multiple of both 5 and 10?

• 20

• 50

• 80

• All of the above

What is the smallest prime factor of 91?

• 7

• 11

• 13

• 17

Which of the following is NOT a factor of 100?

• 25

• 50

• 75

• 10

Is 144 a multiple of 12?

• Yes

• No

What are the prime factors of 126?

• 2, 3, 7

• 2, 3, 21

• 3, 3, 7

• 2, 7, 9

Which of the following numbers is a factor of 196?

• 14

• 18

• 22

• 28

Is 200 a multiple of 4?

• Yes

• No