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    The LCM of 40, 20, 195 and 160 is:
    Question

    The LCM of 40, 20, 195 and 160 is:

    A.

    6169

    B.

    6319

    C.

    6240

    D.

    6219

    Correct option is C

    Formula Used:
    LCM = Lowest Common Multiple of all given numbers
    Solution:
    Prime factorization of 40 = 2³ × 5
    Prime factorization of 20 = 2² × 5
    Prime factorization of 195 = 3 × 5 × 13
    Prime factorization of 160 = 2⁵ × 5
     LCM = Highest power of all prime factors = 2⁵ × 3 × 5 × 13  = 32 × 3 × 5 × 13= 6240


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