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The greatest common factor of 18 21 and 42 is 3.

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14y ago

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More answers

Greatest common factor of 12 18 and 42 is 6.

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Wiki User

14y ago
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The Greatest Common Factor (GCF) is: 6

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14y ago
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The GCF is 6.

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Wiki User

9y ago
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The GCF is 3.

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Wiki User

8y ago
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The GCF is 6.

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9y ago
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The GCF of 42 and 18 is 6.

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13y ago
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It is: 6

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Wiki User

9y ago
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6 is.

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Wiki User

13y ago
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Q: What is the greates common factor of 18 and 42?
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