18080...08081 (33-digits)

This number is a prime.

180 8081108081 8810188180 8011808081

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180808110808188101881808011808081 is the 1881881-st tetradic prime. Can you find the 100111001-st? [Gaydos]

Submitted: 2022-02-05 16:29:17; Last Modified: 2022-02-05 16:43:38.