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The factors of 77 are 1, 7, 11, 77.

For them to be common, they need to be compared to another set of factors.

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βˆ™ 9y ago
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βˆ™ 14y ago

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

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Q: What is the common factor for 77?
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The greatest common factor of 21 and 77 is 7.


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What is the greatest common factor of 77?

There is not a greatest common factor of a single number, such as 77, because there cannot be a greatest common factor without two or more numbers to compare. Common factors are factors that the numbers being compared have in common. The greatest common factor is the largest factor that all the numbers being compared have in common. Thus, since there are not two or more numbers to compare, there are neither common factors nor a greatest common factor. The factors of 77 are 1, 7, 11, and 77. The prime factors of 77 are 7 and 11. Examples: The greatest common factor of 63 and 77 is 7. The greatest common factor of 74 and 77 is 1. The greatest common factor of 77 and 121 is 11.


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