13000...00031 (755-digits)

This number is a prime.

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10^(377-1)*(666+13*10^377)+31 is a palindromic prime. Note that the beast number is in the center with an emirp pair adorning the ends. [Earls]

Submitted: 2004-08-02 18:55:11; Last Modified: 2008-01-30 17:28:00.