12234...43221 (49-digits)

This number is a prime.

                       122344445 6666667888 8888898888 8888766666 6544443221

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A prime formed from the nine digits in ascending and descending concatenation, the even digits repeated themselves times. [Silva]

Submitted: 2010-04-19 04:57:52;   Last Modified: 2010-04-22 00:21:34.
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