56067...15433 (106-digits)

                                     560671 1279381880 7759090640 3103377727
6169702233 1786998848 3399360167 2446267509 6723055115 8901851145 4217415433

+ The product of the first 19 Mersenne exponents plus the product of the next 20 known exponents (as of September 2002) is prime. [Rupinski]

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