59999

This number is a prime.

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The only near-repdigit prime that can be represented as the sum of two repdigit numbers, consisting respectively of m m's and n n's, where m, n are successive digits, i.e., 4444 + 55555. [Loungrides]

Submitted: 2017-04-28 13:37:46;   Last Modified: 2019-01-23 06:39:25.
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