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What is the greatest common factor of 77 and 21?

Updated: 10/26/2022

Wiki User

β 12y ago

The greatest common factor of 21 and 77 is 7.

Wiki User

β 8y ago

Wiki User

β 12y ago

Wiki User

β 7y ago

The greatest common factor of 77 and 21 is 7

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Q: What is the greatest common factor of 77 and 21?
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It is: 7

It is: 7

The GCF is 1.

The GCF is 7.

What is the greatest common factor of 91 77 and 21?

The greatest common factor of 21, 77, and 91 is 7.How to find the greatest common factor of 21, 77, and 91:One way to determine the greatest common factor is to find all the factors of the numbers and compare them.The factors of 21 are 1, 3, 7, and 21.The factors of 77 are 1, 7, 11, and 77.The factors of 91 are 1, 7, 13, and 91.The common factors are 1 and 7. Therefore, the greatest common factor is 7.The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.The prime factors of 21 are 3 and 7.The prime factors of 77 are 7 and 11.The prime factors of 91 are 7 and 13.The only prime factor in common is 7, so the greatest common factor is 7.The GCF is 7.

The GCF is 7.

What is the greatest common factor of 90 and 77?

The greatest common factor of 90 , 77 = 1

What is the greatest common factor of 22 and 77?

The greatest common factor of 22 and 77 is 11.

What is the greatest common factor of 77 and 143?

The greatest common factor of 77 and 143 is 11.

What is the greatest common factor of 77 and 88?

The greatest common factor of 77 and 88 is 11, and it is also the greatest prime factor.

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.

What is the greatest common factor of 77 and 33?

Greatest common factor of 33 and 77 is 11.