99999...00001 (128-digits)

This number is a prime.

             99999999 9999999999 9999999999 9999000000 0000000000 0000000000
0000009999 9999999999 9999999999 9999999900 0000000000 0000000000 0000000001

+ 10^128-10^96+10^64-10^32+1 is prime. [Dobb]

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