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A057883
Smallest possible prime with at least n (from 2 to 10) distinct digits that remains prime (leading zeros not allowed) when all occurrences of its digits d are deleted.
7
23, 137, 6173, 37019, 5600239, 476710937, 8192454631, 1645957688093, 78456580281239
OFFSET
2,1
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