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The LCM of 6 and 21 is 42. Their GCF is 3.

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โˆ™ 2012-10-18 02:38:15
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โˆ™ 2015-11-04 01:51:06

3 and 42, respectively.

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Q: What is the GCF and LCM of 6 and 21?
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