99999...98231 (1000-digits)

This number is a prime.

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The number 10^1000-1769 is the largest 1000-digit prime (996 9's followed by the prime 8231). Note that it also has a prime sum of digits. [Patterson]

Submitted: 2003-01-03 19:26:00; Last Modified: 2010-12-01 02:12:00.