OFFSET
1,2
COMMENTS
191 and 193 are twin primes.
LINKS
Chris Caldwell, The First 1,008 Twin Primes.
EXAMPLE
If n=56, then 191*n + 193 = 10889 (prime).
MATHEMATICA
Select[Range[0, 1000], PrimeQ[191#+193]&] (* Harvey P. Dale, Dec 26 2010 *)
PROG
(Magma) [n: n in [0..100000] | IsPrime(191*n + 193)] // Vincenzo Librandi, Nov 13 2010
(PARI) is(n)=isprime(191*n+193) \\ Charles R Greathouse IV, Jun 13 2017
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Parthasarathy Nambi, Jun 02 2005
STATUS
approved