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What is the greatest common factor for 20 and 45x
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What is the greatest common factor for 20 and 45x

User Li Ho Yin
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You can't have the gcf with an x because 20 doesn't include an x so you're left with 5 for the answer because 5 goes into 20, 4 times
and 5 goes into 45, 9 times.
User Andy Blackman
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