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Because 210 is the smallest number that both 30 and 42 divide into equally with no remainder.

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12y ago

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The GCF of 42 and 10 is 2.

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7y ago
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The GCF is 42 and the LCM is 210

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9y ago
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GCF(42, 10) = 2.

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7y ago
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Q: What is the GCF and LCM of 42 and 210?
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