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What is The Greatest Common Factor of 21 and 63?​
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4 votes
What is The Greatest Common Factor of 21 and 63?​

User Kamoo
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4 votes
The Greatest Common Factor or GCF of 21 and 63 is 21.
User Chris Mayer
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1 vote
It should be 7. No bigger number can go into either.
User TheLittleNaruto
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