Top P-1 factors of Mersenne numbers

Top P-1 factors of all time for First

Top factors for all users
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#UserExponentFactorBits*Date
1First4703880134275420783892855749669275988.1472009-08-30 10:31:00
2First440895011568690173761112450624773.7322009-04-02 18:17:00