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Math Help - necessary and sucient condition on q for 3 to be a primitive root modulo p

  1. #1
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    necessary and sucient condition on q for 3 to be a primitive root modulo p

    Let p, q be odd primes with p = 2q + 1.

    Find a necessary and sucient condition on q for 3 to be a primitive
    root modulo p.
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  2. #2
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    Re: necessary and su

    I guess you can use the same type of proof as is here, sophie germain prime primitive root.

    Salahuddin
    Maths online
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