Question

Find the hcf by common factors 28,42​

Answer 1

Answer:

Greatest common factor (GCF) of 28 and 42 is 14. We will now calculate the prime factors of 28 and 42, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28 and 42.

Answer 2

Answer:

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Step-by-step explanation:

The factors of 28 are 28, 14, 7, 4, 2, 1.

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

The common factors of 28 and 42 are 14, 7, 2, 1, intersecting the two sets above.

In the intersection factors of 28 ∩ factors of 42 the greatest element is 14.