OFFSET
2,1
LINKS
C. Rivera, PrimePuzzle 110
C. K. Caldwell, Prime Curios! 5600239
C. K. Caldwell, Prime Curios! 476710937.
EXAMPLE
5600239 is a solution for at least 6 digits because 56239, 560039, 560029, 600239, 500239 and 560023 are all primes.
CROSSREFS
KEYWORD
nonn,base,fini,full
AUTHOR
Patrick De Geest, Oct 15 2000
EXTENSIONS
More terms from Giovanni Resta, Feb 15 2006
STATUS
approved