Question

find HCF by multiplication method 9 and 15​

Answer 1

Prime Factorisation Method:

9 = 3²

15 = 3 × 5

HCF = product of common factors with lowest power

==> HCF = 3

Euclid Division Algorithm:

==> 15 = 9 × 1 + 6

==> 9 = 6 × 1 + 3

==> 6 = 3 × 2 + 0

Hence, HCF = 3