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[ February 21, 2000 ]
Arranging all the base b representations of palindrome 31113 in an
upward (2<=b<=10) and downward (10>=b>=2) string produces two genuine primes.
Prime 1 = 3111346610746111564654000131443423132120211120200100111100110001001
Prime 2 = 1111001100010011120200100132120211443423400013156465746114661031113

The following palindrome with this property is 73837.
Both 31113 and 73837 are composite palindromes.
So, who can provide me the first palindromic prime example ?

A000071 Prime Curios! Prime Puzzle
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