Question

what is the greatest common factor of 12 and 20

Answer 1

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The greatest common factor of 12 and 20 is 4 because both of the number is devided by 4.

Answer 2

Answer:

4 is the greatest common factor of 12 and 20.

Step-by-step explanation:

Explanation:

• In mathematics, the largest positive integer that divides each of the integers is known as the greatest common divisor of two or more integers that are not all equal to zero.

• A group of numbers' greatest common factor is the biggest factor that all the numbers have in common.

• For instance, 12, 20, and 24 have two things in common: 2 and 4

Step 1:

We have, 12 and 20.

   12) 20(1

        -12

          8 ) 12 ( 1

              -8

                4)8(2

                   -8  

                     xx

This can be written as,

20 = 12 × 1 + 8

⇒ 12 = 8 × 1 + 4

⇒ 8 = 4 × 2 + 0

Final answer:

Hence, 4 is the greatest common factor of 12 and 20.

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