What does LCM stand for?
Lowest Common Multiple (Lowest number which is a multiply of both).
What does HCF stand for?
Highest Common Factor (Highest number which is a factor of both).
How do use product of prime factors to find the HCF?
Normal do product of prime factor then chooses number that appear in both.
How do use product of prime factors to find the LCM?
Normal do product of prime factor then write down all the number from our first list then include any number form the second list that have not appeared.