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

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They are 2 and 7.

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

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.

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

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

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

As a product of its prime factors: 2*3*7 = 42 As a product of its prime factors: 2*2*2*7 = 56

The prime factors of 56 are 2 and 7. For them to be common, they need to be compared to another set of prime factors.

The greatest common factor of 42 and 56 is 14.

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.

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

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

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

7 (7X6=42 and 7X8=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.

The factors of 56 are 1, 2, 4, 7, 8, 14, 28 and 56. 2 and 7 are prime. To be common, they need to be compared to another list of factors.

The factors of 42 are: 1 2 3 6 7 14 21 42 The prime factors are: 2 x 3 x 7 & The factors of 56 are: 1 2 4 7 8 14 28 56 The prime factors are: 2 x 2 x 2 x 7

1,2,7

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

The HCF of 28, 42 & 56... is 14 !

1,2,7 and 14

1,2,7 and 14

1,2,7 and 14

Fourteen.42/14=356/14=43 and 4 are relatively prime therefore 14 is the greatest common factor of 42 and 56.

It is 70 or 42 that have exactly 3 prime factors