Q.3) Find the LCM and HCF of the following integers by applying the prime factorisation method. (i) 12, 15 and 21 Next (ii) 17, 23 and 29 Next (iii) 8, 9 and 25 Next Ex – 1.1 Que No. 1 Ex – 1.1 Que No. 2 Ex – 1.1 Que No. 3 Ex – 1.1 Que No. 4 Ex – 1.1 Que No. 5 Ex – 1.1 Que No. 6 Ex – 1.1 Que No. 7