Find the HCF of the set of numbers $18, 24$. 

Find the HCF of the set of numbers $51, 85$.

Find the HCF of the set of numbers $61,76$.

Find the HCF of the set of numbers $84,120$.

Find the HCF of given set of numbers using prime factorisation method:

$27,45,81$

Find the HCF of the set of numbers $45,55,95$.

Find the LCM of given set of numbers using the prime factorization method:

$6, 9$

Find the LCM of given set of numbers using prime factorisation method:

$8, 12$

Find the LCM of given numbers using the prime factorization method.

$10,15$