10000...00289 (100-digits)
This number is a prime.
1000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000289
The smallest 100-digit prime. [Patterson]
(There is one curio for this number that has not yet been approved by an editor.)
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