This number is a prime.

                                                              171 9004000057

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Nine primes can be produced recursively using the formula p -> 4p^2+1, starting with 1719004000057. Found by Jan van Delden, 2018. [Rivera]

Submitted: 2018-07-03 11:29:18;   Last Modified: 2019-01-29 10:14:31.
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