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The GCF of 8, 42, and 60 is 2.

The factors of 8 are 1, 2, 4, and 8.

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

The factors of 60 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60.

The greatest common factor is 2.

Or, you can look at the prime factors.

The prime factors of 8 are 2, 2, and 2.

The prime factors of 42 are 2, 3, and 7.

The prime factors of 60 are 2, 3, and 5.

The only prime factor they all have in common is 2, so the greatest common factor is 2.

Using factor trees:

8

4,2

2,2,2

42

21,2

7,3,2

60

30,2

15,2,2

5,3,2,2

The GCF is 2.

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Q: What is the greatest common factor of 8 42 and 60?
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Greatest common factor of 42 and 60?

6


What is the greatest common factor of 24 42 and 60?

The GCF of 24, 42, and 60 is 6.


What is the greatest common factor of 30 42 48 and 60?

The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.The greatest common factor of 30, 42, 48, and 60 is 6


What are the common factors and greatest common factor of 42?

There is neither a greatest common factor nor common factors of a single number, such as 42, 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 42 are 1, 2, 3, 6, 7, 14, 21, and 42. Examples: The common factors of 25 and 42 are only 1; the greatest common factor is 1. The common factors of 36 and 42 are 1, 2, 3, and 6; the greatest common factor is 6. The common factors of 42 and 49 are 1 and 7; the greatest common factor is 7. The common factors of 42 and 60 are 1, 2, 3, and 6; the greatest common factor is 6. The common factors of 42 and 70 are 1, 2, 7, and 14; the greatest common factor is 14.


Greatest common factor of 48 and 60?

12 is the greatest common factor of 48 and 60.