66666...66641 (43-digits)
This number is a prime.
666 6666666666 6666666666 6666666666 6666666641
Single Curio View: (Seek other curios for this number)
The largest prime less than a googol of the form 666...666dd,
where the last digits are the number of 6's. [Loungrides]
Submitted: 2009-01-11 17:48:36; Last Modified: 2009-01-12 22:44:16.
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