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What is the greatest common factor of 21, 15, and 18?
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What is the greatest common factor of 21, 15, and 18?

User Ishtiaque
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1 Answer

13 votes

Answer:

3

Explanation:

21÷3=7

15÷3=5

18÷3=6

7 5 and 6 do not have a gcf except for 1.

User Weslee
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