10891

This number is a prime.

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The larger term in the first occurrence of a twin prime pair of super-3 numbers, i.e., (10889, 10891), that are both emirps. Note that, (3*10889^3=3873336676107, and 3*10891^3=875471333913). [Loungrides]

The smallest prime (emirp) that is simultaneously α super-2 and α super-3 prime, i.e., 2 × 10891^2 = 237227762, 3 × 10891^3= 3875471333913. [Loungrides]