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The only eight-digit repdigit such that the difference of all truncations of itself from itself plus one, i.e., 44444444-4444444-444444-44444-4444-444-44-4 + 1 = 39506177, is an emirp. [Bajpai]


  Submitted: 2015-02-25 12:07:25;   Last Modified: 2015-02-25 14:40:00.

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