Question

find the hcf and lcm by prime factorisation method 12,30,48​

Answer 1

hcf of 12=4, 30=15, 48=16

Answer 2

Answer:

LCM and HCF of 20

2║ 20

2║ 6

3║3

║1

LCM and HCF of 30

2║30

3║ 15

5║ 5

║1

HCF and LCM of 48

2║ 48

2║ 24

2║ 12

2║ 6

3║ 3

║ 1

12 =2×2×3

30. =2×3×5

48. =2×2×2×2×3

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. . 2,3 are the HCF and LCM