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Math Help - Indices

  1. #1
    Member GAdams's Avatar
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    Indices

    You are given that n= 2^2 * 5

    Write 40n as the product of its prime factors.
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  2. #2
    MHF Contributor red_dog's Avatar
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    40=2^3\cdot 5.
    Then 40n=2^3\cdot 5\cdot 2^2\cdot5=2^5\cdot 5^2
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  3. #3
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by GAdams View Post
    You are given that n= 2^2 * 5

    Write 40n as the product of its prime factors.
    n = 2^2 \cdot 5

    \Rightarrow 40n = 40 \cdot 2^2 \cdot 5

    = 8 \cdot 5 \cdot 2^2 \cdot 5

    = 2^3 \cdot 5 \cdot 2^2 \cdot 5

    = 2^5 \cdot 5^2

    EDIT: Why am i always the second one to post today?
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