74071

This number is a prime.

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The smallest Cyclops emirp that can be represented as the sum of a repdigit number with all of its truncations plus 1, i.e., 66666+6666+666+66+6+1. [Loungrides]

Submitted: 2019-02-10 19:51:04; Last Modified: 2019-02-10 21:13:16.