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Math Help - mod not explained

  1. #1
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    mod not explained

    what is 3 to the power -1 (mod 29)?
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by idontdomath View Post
    what is 3 to the power -1 (mod 29)?
    You can think of modular arithmetic as clock arithmetic, so a number {\rm{modulo}}~<br />
29 is the remainder when that number is divided by 29.

    In this case we are looking for a number N in [0,28] such that:

    3N=29 \times k +1

    for some integer k

    RonL
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  3. #3
    Super Member angel.white's Avatar
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    Quote Originally Posted by CaptainBlack View Post
    You can think of modular arithmetic as clock arithmetic, so a number {\rm{modulo}}~<br />
29 is the remainder when that number is divided by 29.

    In this case we are looking for a number N in [0,28] such that:

    3N=29 \times k +1

    for some integer k

    RonL
    That makes a lot more sense than what I was thinking (glad I kept my mouth shut ^_^)
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