Marin Mersenne 2^P-1
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MnStatusDetails
2939977Factored
FactorDigitsBitsDate
5795615308677730015672169.02020-10-11 02:25:28
ECM
DigitsB1Curves
255000028 / 280
Estimated T-Level: 20.5 ⓘ
TF below 2^63 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-02-19CPT David C. CochranC6D9F2970ADC2C720
Verified (Factored)1999-07-26Carl MikkelsenC6D9F2970ADC2C722169878
Verified (Factored)2018-10-10kkmrkkblmbrbkC6D9F2970ADC2C722687205
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2020-10-14Klaus NordmannE07BCABE7E8D9C531257306853
Verified2020-11-11Oliver KruseE07BCABE7E8D9C531153895153
History
DateUserTypeResult
2020-11-11curtiscCERT
PRP Certification
Proof certified good
2020-11-11Oliver KruseC-PRP
M2939977/579561530867773001567 : E07BCABE7E8D9C53
PRP proof power = 7
PRP: Verified
Proof certified good
2020-10-14Klaus NordmannC-PRP
M2939977/579561530867773001567 : E07BCABE7E8D9C53
PRP proof power = 7
PRP: Verified
PRP proof never uploaded
2020-10-11GANF-ECM
Factor: 579561530867773001567 / (ECM curve 3, B1=50000, B2=5000000, Sigma=2304718316685686)
2018-12-22chuenkitNF
no factor from 2^67 to 2^68
2018-10-10kkmrkkblmbrbkC-LL
C6D9F2970ADC2C72
2017-11-24Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-24ramgeisNF
no factor from 2^65 to 2^66
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2015-04-29VictordeHollanderNF-PM1
B1=1000000, B2=20000000, E=12
2015-04-25VictordeHollanderNF
no factor from 2^64 to 2^65
2015-04-25VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-07dbaughNF
no factor from 2^62 to 2^63
2011-12-28markrNF
no factor from 2^61 to 2^62
2010-11-07markrNF-PM1
B1=105000, B2=2283750, E=6
2009-02-12Sturle SundeNF
no factor from 2^60 to 2^61