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Math Help - Primitive root question

  1. #1
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    Primitive root question

    ok, so I am really confused on this question and have been searching google for an example with no luck. I am hoping someone can help me out here.
    This is the problem,

    Find by hand all primitive roots mod 197. I cant imagine I have to go through every number n to check if its a primitive root as that would be a lot of numbers.

    Thanks
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  2. #2
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  3. #3
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    Quote Originally Posted by Plato View Post

    Yea, I did read that. did I have to calculate each number individually though or is there a way that I can assume that since that 2 is a primitive root, then 4 is also since its 2^2?
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  4. #4
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    hmm
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