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Common Factors Worksheet

A Grade 9 math worksheet focusing on finding common factors of numbers and algebraic expressions.

Grade 9 Math AlgebraFinding Common Factors
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Includes

Fill in the Blanks2 Short AnswerMultiple ChoiceTrue / False

Standards

CCSS.MATH.CONTENT.6.NS.B.4CCSS.MATH.CONTENT.7.NS.A.2.C

Topics

mathalgebrafactorscommon factorsgrade 9
7 sections · Free to use · Printable
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Common Factors Worksheet

Name:

Date:

Score:

Read each question carefully and provide your answers in the spaces provided. Show all your work for full credit.

1. The factors of 24 are  .

2. The factors of 36 are  .

3. The factors of 18 are  .

1. List the common factors of 12 and 18.

2. What are the common factors of 20 and 30?

3. Find the common factors of 42 and 60.

1. Which of the following is NOT a common factor of 24 and 40?

a

2

b

4

c

6

d

8

2. What is the greatest common factor of 30 and 45?

a

3

b

5

c

10

d

15

1. The only common factor of prime numbers is 1.

T

True

F

False

2. The common factors of 10 and 15 are 1 and 5.

T

True

F

False

1. What is the greatest common factor (GCF) of 72 and 108?

2. Two numbers have a GCF of 6. If one number is 30, what could the other number be? Give two possible answers.

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