99999...99959 (88-digits)

This number is a prime.

                                                         99999999 9999999999
9999999999 9999999999 9999999999 9999999999 9999999999 9999999999 9999999959

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The largest prime that can be written, one digit per key, on a standard 88-key piano. [Patterson]

Submitted: 2005-09-14 15:43:48;   Last Modified: 2008-01-30 11:28:00.
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