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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 6 are 1, 2, 3, and 6.

The factors of 81 are 1, 3, 9, 27, and 81.

The common factors are 1 and 3. Therefore, the greatest common factor is 3.

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Q: What is the greatest common factor of 6 and 81?
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What is the greatest common factor for 18 and 81?

The factors of 18 are 1, 2, 3, 6, 9, and 18. The factors of 81 are 1, 3, 9, 27, and 81. The common factors are 1, 3, and 9. Therefore, the greatest common factor is 9. You can also determine the greatest common factor from the prime factors. The prime factors of 18 are 2, 3, and 3. The prime factors of 81 are 3, 3, 3, and 3. The prime factors in common are 3 and 3, so the greatest common factor is 3 x 3 = 9.


What is the Greatest common factor of 81 and 132?

Answer: 3Definition: 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 the numbers have in common.Method: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 81 are 1, 3, 9, 27, and 81.The factors of 132 are 1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, and 132.The common factors are 1 and 3. Therefore, the greatest common factor is 3.


Greatest common factor of 6 and 8?

The greatest common factor of 6 and 8 is 2.


What is the greatest common factor of 54 and 81?

The GCF of 54 and 81 is 27One way to determine the greatest common factor is to find all the factors of the numbers and compare them.The factors of 54 are 1, 2, 3, 6, 9, 18, 27, and 54.The factors of 81 are 1, 3, 9, 27, and 81.The common factors are 1, 3, 9, and 27. Therefore, the greatest common factor is 27.The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.The prime factors of 54 are 2, 3, 3, and 3.The prime factors of 81 are 3, 3, 3, and 3.The prime factors in common are 3, 3, and 3, so the greatest common factor is 3 x 3 x 3 = 27. Factors of 54: 1 2 3 6 9 18 27 54 Factors of 81: 1 3 9 27 81 The GCF of 54 and 81 is 27The Greatest Common Factor (GCF) is: 27 .27.


What are the common factors and greatest common factor of 36 81?

The factors of 36 are: 1, 2, 3, 4, 6, 9, 12, 18, 36The factors of 81 are: 1, 3, 9, 27, 81The common factors are: 1, 3, 9The Greatest Common Factor (GCF) is: 9