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The GCF of 15 and 77 is 1.

The factors of 15 are 1, 3, 5, and 15.

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

The common factors are 1. Therefore the greatest common factor is 1, which means the two numbers are relatively prime.

The greatest common factor can also be determined by prime factors.

The prime factors of 15 are 3 and 5.

The prime factors of 77 are 7 and 11.

There are no common prime factors, so the two numbers are relatively prime, which means their only common factor is 1.

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8y ago
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Rorisang Matheba

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Thanks guys
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Rorisang Matheba

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2y ago
Thanks guys
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Rorisang Matheba

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2y ago
Can I get one answer i really don't understand this GCF
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9y ago

the gcf of 77 and 15 is 1.

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13y ago

GCF of 15 and 77 is 1.

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Q: What is the greatest common factor of 15 and 77?
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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.


What is the greatest common factor of 45 and 77?

A factor is a divisor - a number that will evenly divide into another number. The greatest common factor of two or more numbers is the largest factor that both numbers have in common. One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them. The factors of 45 are 1, 3, 5, 9, 15, and 45. The factors of 77 are 1, 7, 11, and 77. The only common factor is 1. Therefore, the greatest common factor is 1.


What is the greatest common factor of 55 and 77?

The greatest common factor of 55 and 77 is 11. The prime factorization of 55 is 5*11. The prime factorization of 77 is 7*11. The greatest common factor is 11.


What is the greatest common factor of 231 and 154?

The greatest common factor of 231 and 154 is 77.


What is the greatest common factor of 77 and 121?

The greatest common factor of 77 and 121 is 11.Factors of 77: 1 7 11 77 Factors of 121: 1 11121The GCF is 11.

Related questions

What is the greatest common factor of 15and77?

Factors of 15: 1,3,5,15 Factors of 77: 1,7,11,77 Greatest common factor: 1


What is the greatest common factor of 77 and 21?

The greatest common factor of 21 and 77 is 7.


What is the greatest common factor of 77 46 and 15?

The GCF is 1.


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.


What is the greatest common factor of 77 and 100?

The Greatest Common Factor (GCF) is: 1.


What is the greatest common factor of 45 and 77?

A factor is a divisor - a number that will evenly divide into another number. The greatest common factor of two or more numbers is the largest factor that both numbers have in common. One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them. The factors of 45 are 1, 3, 5, 9, 15, and 45. The factors of 77 are 1, 7, 11, and 77. The only common factor is 1. Therefore, the greatest common factor is 1.


What is the greatest common factor of 55 and 77?

The greatest common factor of 55 and 77 is 11. The prime factorization of 55 is 5*11. The prime factorization of 77 is 7*11. The greatest common factor is 11.