12345...54319 (57-digits)

This number is a prime.

1234567 9012345679 0123456790 1209876543 2098765432 0987654319

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The smallest prime number of the form ((10^n-1)/9)^2-2, case n=29. [Honaker]

Submitted: 2020-02-07 21:00:08; Last Modified: 2020-02-08 12:54:11.