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# What is the greatest common factor of 42 and 86?

Updated: 4/28/2022 Wiki User

5y ago

The GCF of 42 and 86 is 2.

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 42 are 1, 2, 3, 6, 7, 14, 21, and 42.

The factors of 86 are 1, 2, 43, and 86.

The common factors are 1 and 2. Therefore, the greatest common factor is 2. Wiki User

5y ago   Wiki User

8y ago

There is one "greatest common factor", not several.

The greatest common factor of 86 and 42 is the same as the greatest common factor of 42 and 2 - where 2 is calculated as the remainder of the division of 86 by 42.   Wiki User

13y ago

The greatest common factor of 42 and 86 is 2   Earn +20 pts
Q: What is the greatest common factor of 42 and 86?
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Still have questions?  Related questions

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The greatest common factor of 24 , 86 = 2

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### The greatest common multiple of 42 and 86?

The Least Common Multiple (LCM) for 42 86 is 1,806.

### The greatest common factor of 42 and 86?

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### What is the greatest common factor for 86 129 215?

The greatest factor is 86 which is a factor of 86, though not of 44. The greatest COMMON factor, though not requested, is 2.

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### What are the common factors and greatest common factor of 86?

Short answer: There are none. There is neither a greatest common factor nor common factors of a single number, such as 86, 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 86 are 1, 2, 43, and 86. Examples: The common factors of 8 and 86 are 1 and 2; the greatest common factor is 2. The common factors of 86 and 387 are 1 and 43; the greatest common factor is 43.

It is: 2

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2

### What is the greatest common factor of 86 and 63?

The GCF of 86 and 63 is 1.