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%I A109608
%S A109608 2,3,5,7,10,11,13,14,15,17,19,21,23,25,29,31,35,37,41,43,47,49,53,59,61,
%T A109608 67,71,73,79,83,89,97,101,103,105,106,107,109,111,113,115,118,119,122,
%U A109608 123,125,127,129,131,133,134,137,139,141,142,145,146,147,149,151,155
%N A109608 Numbers n such that the number of digits required to write the prime 
               factors of n equals the number of digits of n.
%e A109608 18775 is a term because it is a 5-digit number with 5 digits in its
%e A109608 factorization: 5*5*751 = 18775.
%Y A109608 Cf. A076649.
%Y A109608 Sequence in context: A121232 A122428 A087246 this_sequence A118241 A002269 
               A047487
%Y A109608 Adjacent sequences: A109605 A109606 A109607 this_sequence A109609 A109610 
               A109611
%K A109608 base,easy,nonn
%O A109608 1,1
%A A109608 Jason Earls (zevi_35711(AT)yahoo.com), Jul 31 2005

    
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Last modified December 4 15:11 EST 2009. Contains 170347 sequences.


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