PRIME FACTORISATION Prime factorisation is the process by which a composite number is rewritten as the product of prime factors.Example 1: Find out the prime factorisation of 30. First we will see whether the given number is divisible by a least prime number. Yes, it is, because the digit at its ones place is 0. 30 = 2 × 15 We have, 15 = 3 × 5So, the factors of 30 … [Read more...] about How to Find The Prime Factors Using Factor Tree

# Prime Factorisation

## How To Find The HCF And LCM Using Prime Factorisation Method

Find The HCF And LCM using Prime Factorisation Method Relation between two numbers and their HCF and LCM Consider two numbers 18 and 24. Prime factorisation of 18 = 2 × 3 × 3 Prime factorisation of 24 = 2 × 2 × 2 × 3 So, HCF = 2 × 3 = 6 LCM = 2 × 2 × 2 × 3 × 3 = 72 Product of HCF and LCM = 6 × 72 = 432 Product of given numbers = 18 × 24 = 432 The product of LCM and … [Read more...] about How To Find The HCF And LCM Using Prime Factorisation Method