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%I #9 Mar 31 2024 15:07:51
%S 2,5,7,17,19,43,67,83,89,97,107,113,137,149,181,191,199,227,229,251,
%T 263,281,283,293,337,359,367,383,389,401,419,421,431,433,457,467,479,
%U 503,521,523,557,563,569,617,619,631,641,643,659,661,677,709,733,743,751,769,773
%N Primes for which -23 is a primitive root.
%H Vincenzo Librandi, <a href="/A105895/b105895.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=-23; Select[Prime[Range[200]], MultiplicativeOrder[pr, # ] == #-1 &]
%K nonn
%O 1,1
%A _N. J. A. Sloane_, Apr 24 2005
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