191373251117

This number is a prime.

                                                               19 1373251117

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The smallest LR prime, i.e., a prime obtained by concatenating the odd primes alternately on the left and right of the even prime, (i.e., 2). [Loungrides]

Submitted: 2019-03-31 08:21:52;   Last Modified: 2019-03-31 12:17:26.
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