Question

find the common factor of 20 and 28

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Answer 1

Answer:

Common factors of 20 and 28 are 1, 2 , 4

Solution:

Given that we have to find out common factor of 20 and 28

Let us first understand definition of factors

To factor a number means to break it up into numbers that can be multiplied together to get the original number.

Let us now find the factors of 20 and 28 and then find out the common factor of both numbers

Factors of 20:

The factors of 20 = 1, 2, 4, 5, 10, 20

Factors of 28:

The factors of 28 = 1, 2, 4, 7, 14, 28

On observing the factors list of 20 and 28, we can see clearly that 1, 2, 4 are common in both the list

Therefore common factors of 20 and 28 are 1, 2 , 4

Learn more about factors

Find a common factor

(A) 8,20

(B) 9,15

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Answer 2

Answer:

$fctors \: of \: 20 = 2.4.10.20 \\ factors \: of \: 28 = 2.4.7.14.28 \\ \\ common \: factors \: = 2and \: 4$

Step-by-step explanation:

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