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Math Help - Lcm

  1. #1
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    Angry Lcm

    LCM of 60 & 72
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by starslacker View Post
    LCM of 60 & 72
    once again take the prime decomposition of the two numbers:

    60=(2^2)x3x5

    72=(2^3)(3^2)

    now the prime decomposition of the LCM of the two must contain only
    sufficient prime factors so that it contains the decomposition of the
    two numbers so:

    LCM(60, 72)=(2^3)x(3^2)x5=360

    RonL
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