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2061 is the smallest base b for which the generalized repunit (b593-1)/(b-1) is a (probable) prime, 593 being the only one of the first 188 prime exponents to yild no primes for any base b less than 2,000.

Submitted: 2019-03-06 21:54:39;   Last Modified: 2019-03-11 18:02:12.
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