Question

find the common factor of 20 and 28.​

Answer 1

Given: The numbers are$20 and 28$.

We have to find the common factor of the above numbers.

We are solving in the following way:

We have,

The numbers are$20 and 28$

The factors of $20$ are: $1, 2, 4, 5, 10, 20$  

The factors of $28$ are: $1, 2, 4, 7, 14, 28$  

The common factors are:$1, 2, 4$

Hence, the common factors are of $20 and 28$ will be $1, 2, 4$

Answer 2

To find : common factors of $20$ and $28$ .

Solution :  

• Any number that divides given number evenly is called factor .
• To find common factors of $20$ and $28$ we first find factors of both of them separately .
• Factors of $20$  $= 1,2,4,5,10,20$
• Factors of $28$ $= 1,2,4,7,14,28$
• Now , common factors  = $1,2,4$

Hence , common factors of $20$ and $28$  are $1,2,4$ .