You will find more worksheets listed under these headings:
You will find more worksheets listed under these headings:
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Reteach: Factors (Prime & Composite).


Guided Practice

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Independent Practice: Factors (Prime & Composite)Use what you have learned about factors to determine whether each number is a prime number, or a composite number. 

a. 22 
1 x 22 = 22 2 x 11 = 22

Prime or composite? Composite

b. 19 
1 x 19 = 19

Prime or composite? Prime

c. 11 
1 x 11 = 11

Prime or composite? Prime

d. 25 
1 x 25 = 25 5 x 5 = 25

Prime or composite? Composite

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Independent Practice: Factors (Prime & Composite)Use what you have learned about factors to determine whether each number is a prime number, or a composite number. 

e. 28 
1 x 28 = 28 2 x 14 = 28 4 x 7 = 28

Prime or composite? Composite

f. 40 
1 x 40 = 40 2 x 20 = 40 4 x 10 = 40 5 x 8 = 40 
Prime or composite? Composite

g. 23 
1 x 23 = 23

Prime or composite? Prime

h. 8 
1 x 8 = 8 2 x 4 = 8

Prime or composite? Composite

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The various resources listed below are aligned to the same standard, (4OA04) taken from the CCSM (Common Core Standards For Mathematics) as the Factors and multiples Worksheet shown above.
Find all factor pairs for a whole number in the range 1 to 100. Recognize that a ...