27064032706411

This number is a prime.

                                                             2706 4032706411

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{2706397, 2706403, 2706409, 2706411} is a set of four consecutive semiprimes such that all concatenations of a pair except one are also semiprimes. The exception happens to be prime. [Merickel]

Submitted: 2020-02-03 16:23:16;   Last Modified: 2020-02-03 17:08:44.
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