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Real Numbers and the Number Line
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Common Factors
Greatest Common Factor (GCF) — Definition & Examples

Practice problem

Greatest Common Factor (GCF) — Definition & Examples

+4 contributors

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my_name_is
Moor Xu
Jonathan Heller
Caroline K
Anusha Rahman

What is the greatest common factor of $90$ and $15$ ?

Choose one answer

Option A: A

$15$

Option B: B

$3$

Option C: C

$1$

Option D: D

$1350$

Option E: E

$5$

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