Greatest Common Factor
Practice Questions
ISEE Upper Level (grades 9-12) Quantitative Reasoning › Greatest Common Factor
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1
What is the greatest common factor of 
2
What is the greatest common factor of
3
What is the greatest common factor of 
4
What is the greatest common factor of
5
3/5 + 4/7 – 1/3 =
6
3/5 + 4/7 – 1/3 =
7
What is the greatest common factor of 
8
What is the greatest common factor of
9
Column A Column B
The GCF of The GCF of
45 and 120 38 and 114
10
Column A Column B
The GCF of The GCF of
45 and 120 38 and 114
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