66666...99999 (30-digits)
This number is a prime.
6666667777 7778888888 8999999999
Single Curio View: (Seek other curios for this number)
The only prime formed from four consecutive digits d
with repeating each digit d times. [Loungrides]
Submitted: 2009-02-11 08:34:29; Last Modified: 2014-11-02 15:59:41.
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