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Primes for which -41 is a primitive root.
1

%I #9 Mar 31 2024 15:13:49

%S 2,13,17,23,31,53,59,83,89,97,103,107,127,131,139,149,163,181,193,229,

%T 233,251,257,281,283,293,307,313,317,359,367,419,421,431,443,457,467,

%U 509,521,557,593,599,601,607,619,641,647,653,709,739,743,757,773,787,809,859,863

%N Primes for which -41 is a primitive root.

%H Vincenzo Librandi, <a href="/A105913/b105913.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=-41; Select[Prime[Range[200]], MultiplicativeOrder[pr, # ] == #-1 &]

%K nonn

%O 1,1

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