Marin Mersenne 2^P-1
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MnStatusDetails
935257Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
5273873355599801723722732478.82014-12-16 00:15:18
ECM
DigitsB1Curves
2550000280 / 280
30250000100 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski4350
Verified (Factored)Jordan HusneyE6E08CEBE6B284350
Verified (Factored)2001-12-01Marc Getty / Phil FizurE6E08CEBE6B28435667585
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-28Oliver Kruse25391336AC9117781013
Verified2017-10-14Oliver Kruse25391336AC911778192386713
Verified2017-12-22ATH25391336AC911778151987313
Verified2020-04-23Oliver Kruse93CF7B33DAC6F8D8171374453
Verified2025-05-22kkmrkkblmbrbk93CF7B33DAC6F8D8122308853
History
DateUserTypeResult
2025-05-22belezbarCERT
PRP Certification
Proof certified good
2025-05-22kkmrkkblmbrbkC-PRP
M935257/527387335559980172372273 : 93CF7B33DAC6F8D8
PRP proof power = 6
PRP: Verified
Proof certified good
2022-03-07LordJuliusNF
no factor from 2^58 to 2^60
2020-04-23Oliver KruseC-PRP
M935257/527387335559980172372273 : 93CF7B33DAC6F8D8
PRP: Verified
PRP without proof (small exponent)
2017-12-22ATHC-PRP
M935257/527387335559980172372273 : 25391336AC911778
PRP: Verified
PRP without proof (small exponent)
2017-10-14Oliver KruseC-PRP
M935257/527387335559980172372273 : 25391336AC911778
PRP: Verified
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M935257/527387335559980172372273 : 25391336AC911778
PRP: Verified
PRP without proof (not generated)
2014-12-16Ryan SchulzF-ECM
Factor: 527387335559980172372273
2014-08-14lycornNF
no factor from 2^61 to 2^62
2014-05-22alpertronNF-PM1
B1=10000000, B2=500000000, E=12
2011-12-02markrNF-PM1
B1=4000000, B2=80000000, E=12
2011-07-14JossNF-PM1
B1=217406
2011-06-01JossNF-PM1
B1=200000
2010-06-21Architects CubedNF
no factor from 2^60 to 2^61