Question

Find the common factors of : (a) 6, 9 and 12 (b) 7,21 and 49​

Answer 1

Answer:

a.HCF of 6,9 and 12 is 3

b.HCF of 7,21 and 49 is 7

Step-by-step explanation:

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Answer 2

Answer:

a) 1 and 3

b) 1 and 7

Step-by-step explanation:

a) 6 - 1,2,3,6

   9 - 1,3,9

  12 - 1,2,3,4,6,12

The common factors for 6,9 and 12 are 1 and 3.

b) 7 - 1,7

  21 - 1,3,7,21

  49 - 1,7,49

The common factors for 7,21 and 49 are 1 and 7.

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