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Posted by on Saturday, March 19, 2011 at 10:37pm.

Find the GCF of the numbers using an appropriate method.

240, 10,000, and 4500

Find the prime factorization of the number, and write it in exponent form.

670


Find the LCM for the given numbers by an appropriate method.

24, 54, and 27

  • math - , Sunday, March 20, 2011 at 8:54am

    240 = 2x2x2x3x5
    10000 = 2x2x2x2x5x5x5x5x5
    4500 = 2x2x3x3x5x5x5
    HCF = 2x2x5 = 20
    (2x2x5) is the longest string of multipliers that appears in all 3 numbers.

    670 = 2x5x67


    24=2x2x3x3
    54 = 2x3x3x3
    27 = 3x3x3

    LCM = 2x2x3x3x3 = 108

    (write down the longest string of factors you see.
    Look at your other numbers and include any factors not already listed)

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