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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