Sometimes you are given numbers expressed as a product of prime factors. For example, 8 = 2 3 and 90 = 2 × 3 2 × 5. If you want to find the LCM and HCF in an exam, we can use prime factor form ...

Nod your head again if you never or just rarely got correct answers in calculating LCM and HCF. Well, whatever the case in school, today we bring some interesting math riddles on the same topic.