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%I #4 Apr 16 2014 18:00:51
%S 5,19,29,53,101,139,149,163,173,197,211,269,293,317,379,389,461,509,
%T 557,653,677,701,773,797,821,859,907,941,1061,1109,1123,1229,1277,
%U 1291,1301,1373,1483,1493,1637,1733,1747,1901,1949,1973,1987,1997,2069,2083
%N Primes having primitive roots 2 and 3.
%H T. D. Noe, <a href="/A241043/b241043.txt">Table of n, a(n) for n = 1..1000</a>
%t fQ[p_, n_] := MultiplicativeOrder[p, n] == n - 1; Select[Prime[Range[400]], fQ[2, #] && fQ[3, #] &]
%Y Cf. A001122, A019334, A213052.
%K nonn
%O 1,1
%A _T. D. Noe_, Apr 16 2014
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