Question

find the HCF and LCM of 6,72,and120 using the prime factorisation
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Answer 1

6= 2×3

72= 2×2×2×3×3

120=2×2×2×3×5

HCF of 6, 72 and 120 = 2×3=6

LCM of 6, 72 and 120 = 2×2×2×3×3×5=360