99999...99999 (2493-digits)
This number is a prime.
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This 2493-digit prime number, both a near-repdigit (all the digits except one are the same) and a palindrome, was discovered by Harvey Dubner in 1989. Written out in full it is a string of 1246 9s, an 8, and 1246 9s. [Dobb]
Submitted: 2002-04-13 19:53:23; Last Modified: 2008-01-30 17:28:00.
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