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LCM by Prime Factorisation




          Method








        Step I: Resolve each given


            number into its prime factors

            and express the factors


            obtained in exponent form.

            Step II: Find the product of


            the highest powers of all the

            factors that occur in any of


            the given numbers.


        Step III:The product obtained


            in Step II is the required least

            common multiple (L.C.M).


            For example:
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