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%I #8 Apr 03 2023 10:36:09
%S 23,137,6173,37019,5600239,476710937,8192454631,1645957688093,
%T 78456580281239
%N 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.
%H C. Rivera, <a href="http://www.primepuzzles.net/puzzles/puzz_110.htm">PrimePuzzle 110</a>
%H C. K. Caldwell, <a href="https://t5k.org/curios/page.php?short=5600239">Prime Curios! 5600239</a>
%H C. K. Caldwell, <a href="https://t5k.org/curios/page.php?short=476710937">Prime Curios! 476710937</a>.
%e 5600239 is a solution for at least 6 digits because 56239, 560039, 560029, 600239, 500239 and 560023 are all primes.
%Y Cf. A057876-A057882, A051362, A034302-A034305.
%K nonn,base,fini,full
%O 2,1
%A _Patrick De Geest_, Oct 15 2000
%E More terms from _Giovanni Resta_, Feb 15 2006