Question

H.C.F of 18 and 60 by prime factorisation

Answer 1

Answer:

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The common factors of 18 and 60 are 6, 3, 2, 1, intersecting the two sets above.

In the intersection factors of 18 ∩ factors of 60 the greatest element is 6.

Therefore, the greatest common factor of 18 and 60 is 6.

Answer 2

Answer:

18 = 2×3×3

60 = 2×2×3×5

HCF = 6

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