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Prime numbers whose Spanish names have a prime number of letters
0

%I #6 Feb 27 2014 15:05:03

%S 2,5,7,13,29,31,37,43,61,67,71,79,89,97,107,109,113,127,131,137,139,

%T 151,167,179,181,191,197,199,239,251,269,277,373,383,419,521,569,577,

%U 587,599,641,673,683,733,773,863,883,941,983

%N Prime numbers whose Spanish names have a prime number of letters

%C Spanish version of A072686.

%e e.g 137 -> CIENTOTREINTAYSIETE -> 19 letters and 19 is prime.

%Y Cf. A072686.

%K nonn,word

%O 1,1

%A _Claudio Meller_, Jun 08 2009