Question

find the HCF and LCM of 12,18 by factorisation method
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Answer 1

Answer:

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Answer 2

prime factors of 18-2×3×3

prime factors of 12-2×2×3

so,

common factor= 2×3=6

=H.C.F=6

now,

L.C.M= 2×3×3×2= 36 ANS.

[ L.C.M=36 , H.C.F =6]