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Since 21 is a factor of 105, it is automatically the GCF.

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9y ago
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13y ago

HCF(21, 105) = 21

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Q: What is the highest common factor of 21 and 105?
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What is the highest common factor of 84 and 105?

The GCF is 21.


What is the greatest common factor of 105 and 147?

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The factors of 735 are: 1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735.The factors of 945 are: 1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945.The common factors are: 1, 3, 5, 7, 15, 21, 35, 105.The Greatest Common Factor: 105


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The greatest common factor of 63, 84, and 105 is 21.


What is the greatest common factor of 21 and 105?

The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.The greatest common factor of 21 and 105 is 21.


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