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%I #5 Mar 31 2012 10:26:16
%S 7,47,449,4447,44449,444449,7444441,74444449,444444443,4444444447,
%T 44444444441,444444444443,5444444444443,84444444444449,
%U 494444444444441,8444444444444443,74444444444444441,494444444444444447
%N Largest n-digit prime with the most digits equal to 4.
%C Select first for most 4's, then take the largest.
%Y Cf. A037061, A105980, A099658
%K nonn,base
%O 1,1
%A _Lekraj Beedassy_, May 17 2010
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