prelag8

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3x^2, 12y, and 10x^3y^3

what is the lcm of these numbers?

  • prelag8 -

    More importantly how do you figure out the answer if it is a question with this many powers?

  • prelag8 -

    do just like you would with numbers, break them down into prime factors. Then "collect" them so all are represented.

    3x^2 = 3*x*x
    12y = 3*2*2*y
    10x^3y^3 = 2*5*x*x*x*y*y*y

    so we need: 2*2*3*5*x*x*x*y*y*y
    = 60x^3y^3

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