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Q.

By prime factorization method, what is the L.C.M of , and ?

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a

b

c

d

answer is B.

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Detailed Solution

Concept- Write the factors of each number and find the product of greatest power of each prime factor.
Given numbers are

,

and

By prime factorization method,
Factors of

Factors of

Factors of

So, L.C.M of

,

and

is

Hence, the correct answer is option 2.

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