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# What is the set of common factors of twenty one and twenty eight?

Updated: 8/30/2023

Wiki User

11y ago

Wiki User

11y ago

Wiki User

11y ago

3 times 7 for 21 and 7 times 4 for 28

Wiki User

8y ago

The GCF is 4.

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Q: What is the set of common factors of twenty one and twenty eight?
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