Factors Multiples and Primes

Which of the following statements is true about prime numbers?

• prime number can be divided by only 1 and itself.

• prime number has more than two factors.

• All even numbers are prime numbers.

• prime number must be greater than 10.

What is the highest common factor (GCF) of 18 and 24?

• 6

• 12

• 3

• 9

Which of the following numbers is a factor of 30?

• 5

• 12

• 14

• 21

Which of the following numbers is a factor of 36?

• 6

• 13

• 8

• 24

What is a factor of 12?

• 6

• 5

• 10

• 8

Which of the following is a prime number?

• 9

• 7

• 12

• 15

Which number is a multiple of 3?

• 14

• 10

• 9

• 8

Which of these numbers is not a prime number?

• 11

• 13

• 21

• 17

Which number is a factor of 24?

• 9

• 7

• 5

• 3

What is the highest common factor (HCF) of 16 and 24?

• 8

• 4

• 2

• 6