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The GCF of 54 and 81 is 27

One 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 27
The Greatest Common Factor (GCF) is: 27 .


27.

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8y ago
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8y ago

It is: 27

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Q: What is the greatest common factor of 54 and 81?
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Continue Learning about Basic Math

What is the greatest common factor of 16 72 and 81?

The greatest common factor of 16 72 and 81 is 1.


What is the greatest common factor of 81?

There is not a greatest common factor of 81 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.The factors of 81 are 1, 3, 9, 27, and 81.The prime factors of 81 are 3, 3, 3, and 3.Examples:The greatest common factor of 54 and 81 is 27.The greatest common factor of 81 and 117 is 9.You need at least two numbers to find a GCF.You need at least two numbers to find a GCF.


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What is the greatest common factor of 36 81 and 144?

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What are the greatest common factors of 45 and 81?

Short answer: There are none. There is neither a greatest common factor nor common factors of a single number, such as 81, because there cannot be any form of 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 81 are 1, 3, 9, 27, and 81. Examples: The common factors of 18 and 81 are 1, 3, and 9; the greatest common factor is 9. The common factors of 20 and 81 are only 1; the greatest common factor is 1. The common factors of 39 and 81 are 1 and 3; the greatest common factor is 3. The common factors of 81 and 243 are 1, 3, 9, 27, and 81; the greatest common factor is 81.