Greatest Common Factor Worksheet and Solutions


Related Topics & Worksheets:
Greatest Common Factor (GCF)


Objective: I can find the greatest common factor.



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One way to find the greatest common factor (GCF) is

Step 1: List the factors of given numbers.

Step 2: Find the factors common to the given numbers.

Step 3: Select the greatest common factor.

Read the lesson on greatest common factor if you need to learn how to find the greatest common factor.

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Find the greatest common factors for the following numbers:

a) 12, 18 and 24
GCF =

b) 30, 40 and 60
GCF =

c) 32, 48 and 112
GCF =

d) 27, 72 and 126
GCF =

e) 35, 84 and 105
GCF =

f) 22, 77 and 143
GCF =

g) 64, 96 and 112
GCF =

h) 63, 84 and 126
GCF =

i) 160, 96 and 192
GCF =

j) 85, 255 and 153
GCF =

k) 78, 65 and 91
GCF =

l) 22, 143 and 63
GCF =



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