Common Factors Quiz

What are factors?

• Numbers that multiply to give a product

• Numbers that divide exactly into a number

• Numbers that are divisible by 2

• Numbers that add up to a total

What is a common factor?

• A factor that is divisible by 10

• A factor that is only shared by two numbers

• A factor that is shared by two or more numbers

• A factor that is always a prime number

What is a prime factor?

• A factor that is a multiple of 10

• A factor that is always negative

• A factor that is a fraction

• A factor that is also a prime number

How many common factors do 16 and 48 have?

• 4

• 5

• 3

• 2

What is the common factor of 9 and 15?

• 2

• 3

• 4

• 5

Which of the following are common prime factors for 42 and 56?

• 2 and 6

• 2 and 7

• 3 and 7

• 5 and 9

What is the number 1 considered as in terms of common factors?

• An odd factor

• A common factor for every number

• A prime factor

• A unique factor

How many factors does the number 16 have?

• 6

• 5

• 4

• 7

What method can be used to find common factors without using arrays?

• Skipping numbers

• Random guessing

• Ordered method

• Trial and error

What are the factors of 48?

• 1, 2, 5, 10, 15, 20, 25, 30

• 1, 3, 5, 7, 9, 11, 13, 15

• 1, 2, 4, 7, 8, 14, 28

• 1, 2, 3, 4, 6, 8, 12, 16, 24, 48