Find the H.c.f and L.c.m of 84,120,1 38 by prime factorisation
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We have, 84,120,138
prime factorization of these:
84=2^2×3×7
120=2^2×3×5
138=2×3×23
therefore, HCF=3(because it is the highest common factor among all)
and, LCM=2^3×3×7×5×23
=19320
May it help you☺️
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