This number is a prime.

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A Wagstaff prime has a Jacobsthal index which is the same as the exponent used to produce it. The Jacobsthal number whose index is 83339 is the largest known Wagstaff prime, as of 2018. [Homewood]

Submitted: 2019-07-16 20:11:12;   Last Modified: 2019-07-17 13:36:05.
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