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They are 2 and 7.

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Q: What are common prime factors of 42 and 56?
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Related questions

What is the Prime factor of 42 and 660?

42 - The prime factors are: 2, 3 and 7660 - The prime factors are: 2, 3, 5 and 11


What are the prime factors of 42 and 56?

Prime factors of 42: 2, 3 and 7 Prime factors of 56: 2 and 7


What is the gcf for 42 and 56?

The prime factors of 42 are 2 X 3 X 7. The prime factors of 56 are 2 X 2 X 2 X 7. There fore, the greatest common factor of 42 and 56 are 2 X 7, or 14.


What are the common factors of 42 and 56?

The common factors of 42 and 56 are 1,2,7 and 14


What are the common factors of 21 42 and 56?

The common factors of 21, 42, and 56 are: 1 and 7


What is the greatest common factor of 42 and 56?

The GCF of 42 and 56 is 14.The prime factors of 42 are 2 X 3 X 7.The prime factors of 56 are 2 X 2 X 2 X 7.Therefore, the greatest common factor of 42 and 56 is 2 x 7, or 14.The GCF is 14.The GCF is 14.


What are the common factors of 24 42 and 56?

The common factors of 24, 42, and 56 are 1 and 2.


What is the greatest common factor of 30 42 and 56?

One way to determine the greatest common factor is to find all the factors of the numbers and compare them. The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30. The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42. The factors of 56 are 1, 2, 4, 7, 8, 14, 28, and 56. The common factors are 1 and 2. Therefore, 2 is the greatest common factor. The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together. The prime factors of 30 are 2, 3, and 5. The prime factors of 42 are 2, 3, and 7. The prime factors of 56 are 2, 2, 2, and 7. The prime factors in common are a single 2, so the greatest common factor is 2.


What can you multiply to get the greatest common factor of 42 and 56?

You can multiply 2 x 7 (their common prime factors) to get 14, the GCF.


What are the greatest common factors of 42 and 56?

7 (7X6=42 and 7X8=56)


What is the common factors of 42and 56?

Common factors of 42 and 56 are: 1, 2, 7, and 14.


Greatest common factors of 42 and 56?

The greatest common factor of 42 and 56 is 14.