Top P-1 factors of Mersenne numbers

Top P-1 factors of all time for Piersilvio

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#UserExponentFactorBits*Date
1Piersilvio42153359567541800304962879952811980192.1972009-03-12 21:30:00
2Piersilvio4388526735323645927651978036968.2592010-02-15 21:19:00