Question

find the common factor of the following number 21 and 35 and highlight their HCF also and write in copy ​

Answer 1

Answer:

Finding HCF

After doing the prime factorization :-

21=3×7

35=3×5×5

In both of these 3 is the common factor....

So, the HCF or the highest common factor is 3.

Answer 2

Answer:

The common factor of the two numbers is 7

Step-by-step explanation:

Prime factorization of 21=7×3

Prime factorization of 35=7×5

Therefore HCF is 7

Hope you got it