OFFSET
1,2
COMMENTS
107 and 109 are twin primes.
LINKS
Chris Caldwell, The First 1,008 Twin Primes.
EXAMPLE
If n=70, then 109*n - 107 = 7523 (prime).
PROG
(Magma) [n: n in [1..100000] | IsPrime(109*n - 107)] // Vincenzo Librandi, Nov 13 2010
(PARI) is(n)=isprime(109*n-107) \\ Charles R Greathouse IV, Jun 13 2017
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Parthasarathy Nambi, May 25 2005
STATUS
approved