Question

ne factors of
Find the HCF by factorization
(a) 15,30​

Answer 1

Answer:

The common factors of 15 and 30 are 1, 3, 5, and 15. The greatest common factor is 15

Answer 2

Prime factors of 15 are 3, 5. Prime factorization of 15 in exponential form is:

15 = 3 × 5

Prime Factorization of 30

Prime factors of 30 are 2, 3, 5. Prime factorization of 30 in exponential form is:

30 = 2 × 3 × 5

Now 3 and 5 are common in both

hence HCF=3×5=15