Question

2. Find the HCF by prime factorisation method.
(1) 6,8
(ii) 12, 18
(111) 24, 30
(vi) 20, 24, 36 (vii) 12, 18, 27
(vi) 24, 72, 120
(xi) 165, 275 (xii) 54,72,90
(iv) 72, 120
(ix) 48, 128
(1) 6.12.15
(r) 36, 48, 84
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Answer 1

6,8

Factors of 6= 2×3

Factors of 8 = 2×2×2

Therefore HCF of 6&8 = 2

Answer 2

1. Answer 48,128 Find the HCF by prime factorisation method.