Marin Mersenne 2^P-1
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MnStatusDetails
3138589Factored
FactorDigitsBitsDate
1652874920467977750227379612787.12021-03-25 20:42:37
ECM
DigitsB1Curves
255000047 / 280
Estimated T-Level: 20.8 ⓘ
TF below 2^64 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Ken KrieselD30D22ABCCC9CE220
Verified (Factored)1999-07-12Jeff RennertD30D22ABCCC9CE221009922
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-04-01Chang Chia-Tche1C6184E2CE5F10861202908353
History
DateUserTypeResult
2022-01-24JossNF-PM1
B1=1000000, B2=119912100
2021-04-01Ben DeloCERT
PRP Certification
Proof certified good
2021-04-01Chang Chia-TcheC-PRP
M3138589/165287492046797775022737961 : 1C6184E2CE5F1086
PRP proof power = 7
PRP: Verified
Proof certified good
2021-03-25ZenzomaF-ECM
Factor: 165287492046797775022737961 / (ECM curve 4, B1=50000, B2=5000000, Sigma=4512825926544464)
2019-02-08mikrNF-PM1
B1=3000000, B2=100000000, E=12
2019-01-07TJAOINF
no factor from 2^67 to 2^68
2018-08-14JossNF-PM1
B1=420000, B2=3780000
2018-08-13JossNF-PM1
B1=420000, B2=3360000
2018-08-07JossNF-PM1
B1=420000, B2=1260000
2018-08-06JossNF-PM1
B1=420000, B2=840000
2017-04-17Gordon SpenceNF
no factor from 2^66 to 2^67
2015-06-14ThaNF
no factor from 2^65 to 2^66
2015-02-11VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-11VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-03dbaughNF
no factor from 2^62 to 2^63
2011-11-10Grant McCrackenNF
no factor from 2^61 to 2^62
2011-11-02markrNF-PM1
B1=210000, B2=5460000, E=6
2009-07-03Carsten KossendeyNF-PM1
B1=15000, B2=183750
2009-04-12S485122NF
no factor from 2^60 to 2^61