Top P-1 factors of Mersenne numbers

Top P-1 factors of all time for KAMCOBILL

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#UserExponentFactorBits*Date
1KAMCOBILL66800287277949645352227847085663856991.1672014-08-29 02:06:00
2KAMCOBILL54411361467738225161313597665936981.9522011-06-08 14:23:00
3KAMCOBILL4606154961513023279450251103888179.0252009-02-03 06:57:00