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                         1400000 0000000000 0000000000 0000000000 0000000041
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The only known palindromic prime that begins with a number n, followed by prime(n) zeros and ends with the reversal of n. The next such prime (if it exists) will have more than 30000 digits. [Firoozbakht]


  Submitted: 2009-09-22 18:47:41;   Last Modified: 2009-09-26 08:29:30.

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