Question

3. Find the HCF using prime factorisation method.
(a) 16 and 60
(b) 25 and 65
(c) 48 and 120​

Answer 1

Answer:

16×15. = 240. B. 25=5×5=5^2 . 65=5×13=5^1×13^1. LCM = 5^2×13^1= 25× 65=1625. C. 48=2^4×3^1. 120=2^3×3^1×5^1

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Answer 2

Answer:

HCF of 16 and 60 = 4

HCF of 25 and 65=5

HCF of 48 and 120 = 24