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Question

Find the Highe6st Common Factor (HCF) of 18, 24, and 42.

Verified Answer

66

Explanation & Step-by-Step Solving

Solving: Find the prime factors: 18=2×3218 = 2 \times 3^2, 24=23×324 = 2^3 \times 3, 42=2×3×742 = 2 \times 3 \times 7. The common factors are 2 and 3. HCF=2×3=6\text{HCF} = 2 \times 3 = 6

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