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maths

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Use a factor tree to write 1575 as a product of prime factors. You
should display your factor tree in your answer.

  • maths - ,

    I would start with the prime 5

    5*315
    5*5*63
    5*5*3*21
    5*5*3*3*7

    check that.

  • math - ,

    I don't know what a factor tree is, but I'd start by dividing by 25, which is 5x5. Any number ending in 25 or 75 is divisible by that.

    1575/(5x5) = 63 = 9x7 = 3x3x7

    That leads to 3x3x5x5x7 = 1575

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