login
Primes such that number of prime digits > number of nonprime digits.
2

%I #10 Nov 04 2021 22:40:28

%S 2,3,5,7,23,37,53,73,127,137,157,173,223,227,229,233,239,251,257,263,

%T 271,277,283,293,307,313,317,331,337,347,353,359,367,373,379,383,397,

%U 433,457,503,521,523,547,557,563,571,577,587,593,653,673,677,727,733

%N Primes such that number of prime digits > number of nonprime digits.

%H Hugo Pfoertner, <a href="/A154385/b154385.txt">Table of n, a(n) for n = 1..500</a>

%e 73 is prime, its prime digits are (7, 3), and 2>0 so 73 is a term.

%e 127 is prime, its prime digits are (2, 7), its nonprime digit is (1), so 127 is a term

%Y Cf. A348699.

%K nonn,base,easy,less

%O 1,1

%A _Juri-Stepan Gerasimov_, Jan 08 2009

%E Edited by _Charles R Greathouse IV_, Mar 25 2010