9999999900000001
This number is a prime.
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9999999900000001 is a prime number such that p^2 is a sibling number type (a+1).a, where dot is for concatenation: 9999999900000001^2 = 9999999800000002.9999999800000001. [Rivera]
Submitted: 2020-07-06 00:58:27; Last Modified: 2020-07-06 01:36:53.
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