Marin Mersenne 2^P-1
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MnStatusDetails
3582977Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
71109575967285563211962.62009-08-07 16:22:07
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Bad1999-07-30Randy399274E8CA389B6A2941533
Verified (Factored)1999-08-31Manfred F. Flueck9895E9C64ECB195C3376582
Verified (Factored)2002-06-15riccardo uberti9895E9C64ECB195C0
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-11-10Oliver KruseD29B6FBADA94483A1342728053
Verified2017-12-18kkmrkkblmbrbkD29B6FBADA94483A1136455353
History
DateUserTypeResult
2022-05-26JossNF-PM1
B1=100000, B2=130364850
2022-03-22JossNF-PM1
B1=100000
2022-03-05JossNF-PM1
B1=90000
2017-12-18kkmrkkblmbrbkC-PRP
M3582977/7110957596728556321 : D29B6FBADA94483A
PRP: Verified
PRP without proof (not generated)
2017-11-10Oliver KruseC-PRP
M3582977/7110957596728556321 : D29B6FBADA94483A
PRP: Verified
PRP without proof (not generated)
2009-08-07oodairaF-ECM
Factor: 7110957596728556321
2009-07-09Carsten KossendeyNF-PM1
B1=20000, B2=245000
2009-03-14S485122NF
no factor from 2^60 to 2^61