Find the factors of 36, 18 and 66.

Find all the prime factors.

Find all the factors of 18, 27 and 223.

Find all the prime factors.

Write multiples of 5, 6 and 10 and then find the least one.

Can you use LCM or HCF here?

Find the multiples of 2 and 5 and then find the least one.

Can you use LCM or HCF here?

Recall the definition of HCF.

Find LCM and HCF of both the numbers.