This number is a prime.

                                                               12 1392937879

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The only prime concatenated from all the emirps (1213, 7879, 9293) that are formed by concatenating in ascending order two consecutive double-digit numbers. [Loungrides]

Submitted: 2010-02-03 01:59:52;   Last Modified: 2010-02-03 19:47:35.
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