Search: id:A061075
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%I A061075
%S A061075 3,11,37,101,271,13,4649,137,333667,9091,513239,9901,265371653,909091,
%T A061075 2906161,5882353,5363222357,52579,1111111111111111111,27961,10838689,
%U A061075 8779,11111111111111111111111,99990001,182521213001,1058313049
%N A061075 Greatest prime number p(n) with decimal fraction period of length n.
%H A061075 <a href="Sindx_1.html#1overn">Index entries for sequences related to 
               decimal expansion of 1/n</a>
%e A061075 1/271 = 0.0036900369, period of n=5 for p(5)=271
%o A061075 (PARI) a(n)=local(p); if(n<1,0,p=factor(subst(polcyclo(n),x,10))~[1,]; 
               p[length(p)])
%Y A061075 Cf. A007138, A003020, A005422.
%Y A061075 Sequence in context: A095088 A007138 A046107 this_sequence A005422 A040017 
               A007615
%Y A061075 Adjacent sequences: A061072 A061073 A061074 this_sequence A061076 A061077 
               A061078
%K A061075 nonn,nice
%O A061075 1,1
%A A061075 Heiner Muller-Merbach (hmm(AT)sozwi.uni-kl.de), May 29 2001

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