Top P-1 factors of Mersenne numbers

Top P-1 factors of all time for ursb

Top factors for all users
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#UserExponentFactorBits*Date
1ursb569530639639815029048086491769776.3512011-12-13 08:52:00
2ursb571092675380363078836080325364975.5102012-05-12 03:42:00
3ursb48406109471601562623199782180971.9982010-04-04 15:08:00
4ursb4317306138399438621095506816768.3802010-05-26 13:24:00