|
%I #18 Jan 31 2018 12:34:58
%S 2,7,11,13,23,29,37,41,43,47,53,83,89,113,139,163,173,191,193,239,251,
%T 257,263,269,281,293,311,317,337,347,359,367,401,419,433,443,449,463,
%U 467,479,491,499,503,509,521,569,571,587,601,619,631,641,643,647,673,677,719
%N Primes with primitive root 19.
%H Vincenzo Librandi, <a href="/A019346/b019346.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 Select[Prime[Range[200]], MultiplicativeOrder[19, #] == # - 1 &]
%K nonn,easy
%O 1,1
%A _David W. Wilson_
|
