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Primes for which -24 is a primitive root.
1

%I #9 Mar 31 2024 15:07:54

%S 13,17,19,37,41,43,47,71,89,109,113,137,139,157,163,167,181,191,211,

%T 229,233,257,263,277,281,283,331,353,359,373,383,397,401,421,479,503,

%U 541,569,571,593,599,617,641,647,691,709,719,733,739,743,761,809,811,829,839,857

%N Primes for which -24 is a primitive root.

%H Vincenzo Librandi, <a href="/A105896/b105896.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=-24; Select[Prime[Range[200]], MultiplicativeOrder[pr, # ] == #-1 &]

%K nonn

%O 1,1

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