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%I #5 Mar 31 2012 10:26:16
%S 7,97,997,9949,99989,999979,9999991,99999989,999999929,9999999929,
%T 99999999599,999999999989,9999999999799,99999999999959,
%U 999999999999989,9999999999999199,99999999999999997,999999999999997999
%N Largest n-digit prime with the most digits equal to 9.
%C First maximum the number of 9's, then choose the largest.
%Y Cf. A037071, A105975, A003618
%K nonn,base
%O 1,1
%A _Lekraj Beedassy_, May 17 2010
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