T1-M12024

Which of the following lists all the factors of 32?

• 1, 2, 4, 8 and 32

• 1, 2, 4, 16 and 32

• 1, 2, 4, 8, 16 and 32

• 1, 2, 4, 8, 16, 24 and 32

Which of the following numbers has 9 as a factor?

• 27

• 49

• 56

• 64

Which of the following is a prime number?

• 9

• 17

• 87

• 91

Which of the following are prime factors of 63?

• 2 and 3

• 3 and 7

• 3 and 9

• 7 and 9

Which of the following shows the prime factorization of 126?

• 3 x 7

• 2 x 3 x 3

• 3 x 3 x 7

• 2 x 3 x 3 x 7

What is the prime factorization of 180?

• 2² x 3³

• 2² x 3² x 5

• 2² x 3² x 6

• 2² x 3² x 5²

Which of the following are common factors of 12 and 30?

• 1, 2 and 3

• 1, 2, 3 and 6

• 1, 2, 3, 6 and 15

• 1, 2, 3, 6 12 and 30

What is the highest common factor of 24, 42 and 60?

• 3

• 6

• 8

• 12

What is the greatest number that can divide 125, 180, and 300 without leaving any remainder?

• 5

• 6

• 10

• 25

Which of the following sets of numbers have 18 as their highest common factor?

• 36, 76, 108

• 52, 72, 126

• 60, 108, 126

• 90, 108, 126