111101234567891111

This number is a prime.

                                                         11110123 4567891111

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The smallest prime formed by inserting the digit sequence 0123456789 in between equal repunit numbers, i.e., 1111. [Loungrides]

Submitted: 2015-02-06 10:40:54;   Last Modified: 2019-04-15 13:53:21.
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