Top P-1 factors of Mersenne numbers

Top P-1 factors of all time for Paul Shepherd

Top factors for all users
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#UserExponentFactorBits*Date
1Paul Shepherd5478052954660660053384917148288978.8552011-11-07 04:34:00
2Paul Shepherd383839973766643086446543514727974.9962009-06-24 06:32:00