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Least number beginning with n such that every concatenation is a prime.
1

%I #4 Dec 05 2013 19:56:38

%S 11,23,31,419,523,63,741,81,933,1077,117,1257,137,1441,1523,16111,

%T 1731,1829,1977,20091,21151,221,23059,24059,2569,2621,2769,2883,2913,

%U 3087,319,32099,33033,3483,35193,3607,37841,3859,39489,4083,41333,42213

%N Least number beginning with n such that every concatenation is a prime.

%Y Cf. A090507.

%K base,nonn

%O 1,1

%A _Amarnath Murthy_, Dec 06 2003

%E More terms from _David Wasserman_, Dec 16 2005