Finding Factors

What is a factor?

a number or quantity that when multiplied with another produces a given number or expression.

Match

Match the following factor pairs to the whole number.

• 19

• 35

• 72

• 50

• 44

1 x 19

7 x 5

36 x 2

10 x 5

4 x 11

• 1 x 19

• 7 x 5

• 36 x 2

• 10 x 5

• 4 x 11

The next three videos will show you how to find factor pairs.

Factor Pairs?

all the pairs of numbers that when multiplied produce the product

Multiple Choice

Is 3 a factor of 12?

• yes
• no

Multiple Select

Choose the factor pairs of 8.

• 1x8

• 4+4

• 4x2

• 8x1

Multiple Select

Choose the factor pairs of 15.

• 5+10

• 5x3

• 15x1

• 3x5

What is a Factor?

• Factors are a set of all pairs of numbers that when multiplied together make a larger number.

• Example: Factors of 24

• 1 x 24

• 2 x 12

• 3 x 8

• 4 x 6

Factor Rainbow

Start with the number x 1

Keep going until you start repeating

Take a look at the factors of 72

1x72

2x36

3x24

4x18

6x12

8x9

Multiple Select

Name all the factors of 12.

• 1,2,3,6,12

• 1,2,6,12

• 2,6

• 1,2,3,4,6,12

Multiples

• The product of a given number times a factor

• A continuous list

• Example: List the multiples of 2:

• 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, . . .

• Think Math Fact!

Multiple Choice

What are the FIRST 5 multiples of: 5

• 5, 10, 12, 20, 135

• 5, 10, 15, 20, 25

• 5, 10, 15, 20, 22

• 2, 5, 7, 10, 15

Multiple Select

Select ALL that Apply:

What are multiples of: 7

• 42

• 27

• 49

• 63

Multiple Choice

What are the next three multiples?6, 12, 18, ___ ,___ ,___

• 24, 30, 34
• 24, 36, 42
• 24, 30, 36
• 22, 28, 34