%I #5 Mar 31 2012 10:26:16
%S 5,59,557,5557,75557,555557,9555551,55555559,855555559,5555555557,
%T 75555555557,555555555559,5555555555551,59555555555557,
%U 555555555555557,6555555555555553,55556555555555557,555555555555555559
%N Largest n-digit prime with the most digits equal to 5.
%C Select first for the most 5's, then take the largest.
%Y Cf. A037063, A105979, A099659
%K nonn,base
%O 1,1
%A _Lekraj Beedassy_, May 17 2010