99999...99999 (43-digits)

This number is a prime.

                             999 9999991333 5555577777 7755555333 1999999999

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The smallest expanded palindromic prime containing all odd digits. [Silva]

Submitted: 2018-12-10 16:23:21;   Last Modified: 2018-12-10 18:07:29.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell