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.
23, 137, 6173, 37019, 5600239, 476710937, 8192454631, 1645957688093, 78456580281239
Offset: 2
Examples
5600239 is a solution for at least 6 digits because 56239, 560039, 560029, 600239, 500239 and 560023 are all primes.
Links
- C. Rivera, PrimePuzzle 110
- C. K. Caldwell, Prime Curios! 5600239
- C. K. Caldwell, Prime Curios! 476710937.
Extensions
More terms from Giovanni Resta, Feb 15 2006