login
A166559
Primes p such that product of digits + 10 is prime.
1
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
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
KEYWORD
nonn,base
AUTHOR
Vincenzo Librandi, Oct 28 2009
EXTENSIONS
Corrected by Vincenzo Librandi, Jan 01 2014
STATUS
approved