Question

1. Find LCM and HCF by prime factorisation method.
(i) 6 and 20
(iii) 6, 72, 120
(ii) 96 and 404
(iv) 8, 9 and 25.​

Answer 1

Answer:

(i) 6=2 , 3

12=2 , 2 , 3

LCM=12

HCF=6

(ii) 6=2 , 3

72=2 , 2 , 2 , 3 , 3

120=2 , 2 , 2 , 5 , 5

LCM=1800

HCF=24

(iii)8=2 , 2 , 2

9=3 , 3

25=5 , 5

LCM=1800

HCF=1

Please mark me as brainliest.....