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Primes for which -11 is a primitive root.
1

%I #9 Mar 31 2024 15:04:29

%S 2,7,13,17,29,41,73,79,83,101,107,109,127,131,139,149,151,167,173,197,

%T 227,233,239,263,271,277,281,283,293,307,347,359,373,431,439,461,479,

%U 491,503,557,563,569,571,593,601,607,613,659,673,677,701,739,743,761,769,787,809

%N Primes for which -11 is a primitive root.

%H Vincenzo Librandi, <a href="/A105883/b105883.txt">Table of n, a(n) for n = 1..1000</a>

%H <a href="/index/Pri#primes_root">Index entries for primes by primitive root</a>

%t pr=-11; Select[Prime[Range[200]], MultiplicativeOrder[pr, # ] == #-1 &]

%K nonn

%O 1,1

%A _N. J. A. Sloane_, Apr 24 2005