Factors Multiples and Primes Lesson

What is the product of 4 and 6?

• 46

• 24

• 48

Which is not a factor of 24?

• 2

• 3

• 4

• 5

The number 7 is prime.

• True

• False

The factors of 16 are 1, 2, 4, 8, 16

While the factors of 24 are 1, 2, 3, 4, 6, 8, 12, 24

What are the Common Factors?

• 1,2,3,4,5

• 1,2,4,6,8

• 12,3,4,6,8,12,16,24

Which number is a factor of 18, but not a multiple of 2?

• 36

• 9

• 8

• 24

Find the missing multiple.
10:  10, 20, 30, 40, ___, 60, 70, 80

• 100
• 45
• 50
• 55

List the first five multiples of 8.

• 1, 2, 4, 8

• 8, 16, 25, 32, 40

• 8, 16, 24, 32, 40

• 8, 16, 24, 31, 40

Which number is NOT prime?

• 3
• 7
• 17
• 21

List the first 5 MULTIPLES of 3

• 3, 6 10, 15, 20
• 1, 3, 2, 6, 4
• 3, 6, 9, 12, 15
• 6, 9, 12, 15, 18

Factors are numbers that we can multiply together to get another number.

• True

• False