48103...64321 (117-digits)

This number is a prime.

4810382 5897879803 0536962935 0209294742 3690451959
7637596991 7403763769 0314997451 6114977626 5350608956 8501294096 4979164321

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Multiplying this prime by 2^167 yields a 167 digit number containing only the digits 8 and 9. Note that 167 is prime as well. [Rupinski]

Submitted: 2003-02-13 22:39:07; Last Modified: 2008-01-30 17:28:00.