This number is a prime.

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589997 and the 589997th prime number (8799899) are the first case of a prime and its prime index together having an average digit value greater than 8. Are there any that are greater than 106/13 (8.153846+)? [Gaydos]

Submitted: 2019-01-29 20:40:51;   Last Modified: 2019-01-29 21:01:40.
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