26525...99999 (33-digits)

This number is a prime.

265 2528598121 9105863630 8479999999

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((5#)!)-1 is prime. 5 is the largest known prime such that this is true. [Patterson]

Submitted: 2004-08-25 13:34:25; Last Modified: 2008-01-30 17:28:00.