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%I #14 Mar 31 2014 05:52:21
%S 2,29,31,37,43,53,59,61,71,83,101,107,113,127,137,149,157,167,179,227,
%T 241,251,257,263,281,283,307,311,313,317,331,347,349,353,379,419,433,
%U 461,503,541,563,569,577,599,601,617,619,653,691,701,719,743,751,761,769,773
%N Primes with primitive root 55.
%H Vincenzo Librandi, <a href="/A019379/b019379.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=55; Select[Prime[Range[200]], MultiplicativeOrder[pr, # ] == #-1 &]
%K nonn
%O 1,1
%A _David W. Wilson_
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