10000...00081 (144-digits)

This number is a prime.

1000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000081

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10^143 + 3^4 is the smallest prime with a gross of digits. [Patterson]

Submitted: 2003-12-05 15:52:59; Last Modified: 2019-01-13 18:06:57.