Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class
Ex 1.1, 3 (i) - Chapter 1 Class 10 Real Numbers
Last updated at June 23, 2023 by Teachoo
Transcript
Ex 1.1, 3 Find the LCM and HCF of the following integers by applying the prime factorisation method. 12, 15 and 21 Finding HCF 12 = 2 × 2 × 3 15 = 3 × 5 21 = 3 × 7 ∴ H.C.F = 3 L.C.M = 2 × 2 × 3 × 5 × 7 = 420
