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%I #4 Mar 31 2012 10:26:16
%S 7,17,47,67,71,79,97,107,167,179,197,467,479,487,607,617,647,701,709,
%T 719,761,769,887,907,947,967,971,997,1087,1097,1117,1171,1187,1447,
%U 1471,1487,1607,1667,1697,1709,1741,1789,1847,1867,1871,1879,1907,1979,1987
%N Primes with a 7 as the only prime digit.
%Y Cf. A179030.
%K nonn,base
%O 1,1
%A _Lekraj Beedassy_, Jun 25 2010
%E Corrected by _Ray Chandler_, Jul 13 2010
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