52929...05377 (31-digits)

This number is a prime.

                                          5 2929138517 4034911276 7518405377

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A prime whose arithmetic expression is 2*22*222*…*22222222+1. [Rivera]

Submitted: 2019-05-24 12:35:04;   Last Modified: 2019-05-24 12:41:01.
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