A166559 Primes p such that product of digits + 10 is prime.

3, 7, 11, 13, 17, 19, 31, 37, 71, 73, 79, 97, 113, 131, 137, 139, 173, 179, 191, 193, 197, 311, 313, 317, 331, 337, 373, 379, 397, 719, 733, 739, 773, 911, 937, 971, 997, 1117, 1171, 1193, 1319, 1373, 1733, 1777, 1913, 1931, 1973, 1979, 1997, 1999

Offset

1,1

Comments

11 is in the sequence because 1*1+10=11 prime; 79 is in the sequence because 7*9+10=73.

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Mathematica

Select[Prime[Range[400]], PrimeQ[Times@@IntegerDigits[#]+ 10]&] (* Vincenzo Librandi, Jan 01 2014 *)

Prog

(Magma) [p: p in PrimesUpTo(3000) | IsPrime(q) where q is &*Intseq(p)+10]; // Bruno Berselli, Jan 01 2014

Crossrefs

Sequence in context: A038920 A361822 A091633 * A177193 A089690 A310194

Adjacent sequences: A166556 A166557 A166558 * A166560 A166561 A166562

Keyword

nonn,base

Author

Vincenzo Librandi, Oct 28 2009

Extensions

Corrected by Vincenzo Librandi, Jan 01 2014

Status

approved