Question

Find the common factor of following 20&28

Answer 1

Answer:

factors of 20=2×2×5

factors of 28= 2×2×7

so, common factor is 2×2

=4

Answer 2

The common factors of 20 and 28 are C = {1, 2, 4}.

Step-by-step explanation:

Compute the factors of 20 as follows:

Factors of 20 = 1, 2, 4, 5, 10, 20

Compute the factors of 28 as follows:

Factors of 28 = 1, 2, 4, 7, 14, 28

The common factors of 20 and 28 are:

C = {1, 2, 4}

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