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Rajan@2021
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Using prime factorisation, find the HCF and LCM of 36 and 84

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In this question we have given two numbers 36 and 84 and we have been asked to find the HCF and LCM of the given numbers.

Kindly solve the above problem

RS Aggarwal, Class 10, chapter 1B, question no 1(i)

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1 Answer

  1. Prime factor of given no.s

    36=2×2×3×3

    84=2×2×3×7
    LCM=2×2×3×3×7=252
    HCF=2×2×3=12
    LCM×HCF=1524
    Product=36×48=1524

    Hence proved.
    HCF×LCM= product of given numbers.

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