This number is a prime.

                                                           111123 5916285193

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After 11, the smallest prime concatenated from the number of n-bead necklaces with beads of 2 colors and primitive period n, when turning over is not allowed but the two colors can be interchanged. [Post]

Submitted: 2010-01-15 22:46:24;   Last Modified: 2010-01-16 08:33:01.
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