What is the HCF and LCM of 12,15,20,27
Answers:
12 = 2×2×3 = 2^2 ×3^1
15 = 3× 5
20 = 2×2×5 = 2^2×5
27 = 3×3×3 = 3^3

HCF = 1
LCM = 2^2 × 3^3 × 5 = 540

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