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Rajan@2021
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Using prime factorisation, find the HCF and LCM of 24, 36 and 40.

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This is the basic and important question from real numbers in which we have given three numbers 24, 36 and 40 we have to find the HCF and LCM of the given numbers by using the method of prime factorization.

RS Aggarwal, Class 10, chapter 1B, question no 2(iv)

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  1. Prime factors of 24,36,40

    24=2×2×2×3=×3
    36=2×2×3×=×
    40=2×2×2×5=×5

    HCF (24,36,40) = =4
    LCM ( 24, 36, 40) = ××5=360

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