Marin Mersenne 2^P-1
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MnStatusDetails
4701611Factored
FactorDigitsBitsDate
15917545139203141848228537294828387156739126.92021-08-10 15:39:49
ECM
DigitsB1Curves
25500009 / 280
Estimated T-Level: 20.2 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Guido Stolz405349B8521458980
Verified (Factored)1999-12-23Eric Whitney405349B852145898970360
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-08-12/r/counting0A616019143329071381667153
P-1 factors
DateFactorB1B2
2021-08-101591754513920314184822853729482838715678000000400000000
History
DateUserTypeResult
2021-08-12Simon JosefssonCERT
PRP Certification
Proof certified good
2021-08-12/r/countingC-PRP
M4701611/159175451392031418482285372948283871567 : 0A61601914332907
PRP proof power = 7
PRP: Verified
Proof certified good
2021-08-10axnF-PM1
Factor: 159175451392031418482285372948283871567 / (P-1, B1=8000000, B2=400000000)
2021-01-27-Anonymous-NF
no factor from 2^70 to 2^71
2018-10-07YxinityNF
no factor from 2^69 to 2^70
2018-10-07YxinityNF
no factor from 2^68 to 2^69
2018-10-07YxinityNF
no factor from 2^66 to 2^67
2018-10-06YxinityNF
no factor from 2^67 to 2^68
2018-04-15BloodERazorNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-07-10snme2pm1NF
no factor from 2^65 to 2^66
2015-07-03David CampeauNF-PM1
B1=1037000, B2=30073000, E=12
2015-01-09VictordeHollanderNF
no factor from 2^64 to 2^65
2015-01-09VictordeHollanderNF
no factor from 2^63 to 2^64
2011-11-08Squeeky_SquirrelNF-PM1
B1=80000, B2=1360000, E=6
2011-10-25GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-06-29markrNF
no factor from 2^61 to 2^62
2009-09-08Carsten KossendeyNF-PM1
B1=25000, B2=381250