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It is not possible to give a sensible answer to this question. The highest common factor (HCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question!

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10y ago
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7y ago

The GCF is 7.

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Wiki User

9y ago

The GCF is 7.

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Wiki User

10y ago

The GCF is 7.

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Wiki User

7y ago

The GCF is 6.

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Wiki User

7y ago

The GCF is 7.

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Wiki User

7y ago

It is 7

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Q: What is the highest common factor of 42 72 and 84?
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