123511311277

This number is a prime.

                                                               12 3511311277

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The smallest concatenate prime (emirp) starting with the primeth recurrence sequence (1, 2, 3, 5, 11, 31, 127, 709, ...). [Beedassy]

Submitted: 2009-06-27 16:27:06;   Last Modified: 2014-07-20 22:48:28.
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