What is the HCF of 84, 120, 138 in the prime factorization method?
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hcf means highest common factor
Answered by
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84 = 2×2×3×7
120 = 2×2×2×3×5
138 = 2 × 3 × 23
HCF = product of common terms with lowest power
HCF = 2 × 3 = 6
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