Top P-1 factors of Mersenne numbers

Top P-1 factors of all time for a97marbr

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#UserExponentFactorBits*Date
1a97marbr4172618949882597918401051478560178.7232010-03-08 07:51:00
2a97marbr4662770346617360492663722235661778.6252009-02-13 12:45:00