Question

2. Using prime factorisation, find the HCF and LCM of:
(i) 8,9,25
(ii) 12, 15, 21 (iii) 17, 23, 29
(iv) 24, 36, 40 (v) 30, 72, 432 (vi) 21, 28, 36, 45​

Answer 1

Answer:

1) LCM= 1

hCF= 30

2) LCM=3

HCF=210

3)LCM=1

HCF=11339

4)LCM=4

HCF=360

5)LCM=1

HCF=2160

6)LCM=1

HCF=1260