Top P-1 factors of Mersenne numbers

Top P-1 factors of all time for Rumble Fish

Top factors for all users
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#UserExponentFactorBits*Date
1Rumble Fish578110211754239891172032425729375183.8592012-01-16 22:13:00
2Rumble Fish472167611355408595873409133685773.5212010-03-14 03:40:00