Marin Mersenne 2^P-1
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MnStatusDetails
1190069Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
4217571833952375987820632478.52018-06-08 13:19:21
10316658944088400367164492579.82011-11-06 18:09:33
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 Slowinski14CA0
Verified (Factored)tom ehlertFC31B5EB3820F4CA0
Verified (Factored)2002-07-27S57483FC31B5EB3820F4CA452752
PRP
StatusDateUserResidueShiftTypeBase
Verified (Factored)2025-09-01Kriesel203B7D6A623AEDBE013
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-09-29Oliver Kruse73B7DC4F6DBAA7BC1013
Verified (Factored)2017-10-17Oliver Kruse73B7DC4F6DBAA7BC1118753013
Verified (Factored)2018-01-02ATH73B7DC4F6DBAA7BC15794513
Verified2018-06-10Daniil Tsarkov203B7D6A623AEDBE2115624453
Verified2018-06-11Chang Chia-Tche203B7D6A623AEDBE21246053
History
DateUserTypeResult
2025-09-02DithyrambusCERT
PRP Certification
CERT proof power = 6
Proof certified good
2025-09-01KrieselC-PRP
203B7D6A623AEDBE
PRP proof power = 6
PRP: Verified (Factored)
Proof certified good
2024-04-30USAFSSNF-PM1
B1=600000, B2=1370553030
2022-04-12LordJuliusNF
no factor from 2^63 to 2^64
2022-04-12LordJuliusNF
no factor from 2^62 to 2^63
2022-04-12LordJuliusNF
no factor from 2^61 to 2^62
2022-04-12LordJuliusNF
no factor from 2^1 to 2^61
2022-03-07LordJuliusNF
no factor from 2^58 to 2^60
2018-06-11Chang Chia-TcheC-PRP
M1190069/1031665894408840036716449/421757183395237598782063 : 203B7D6A623AEDBE
PRP: Verified
PRP without proof (not generated)
2018-06-10Daniil TsarkovC-PRP
M1190069/421757183395237598782063/1031665894408840036716449 : 203B7D6A623AEDBE
PRP: Verified
PRP without proof (not generated)
2018-06-08TJAOIF-ECM
Factor: 421757183395237598782063 / (ECM curve 135, B1=50000, B2=5000000)
2018-01-02ATHC-PRP
M1190069/1031665894408840036716449 : 73B7DC4F6DBAA7BC
PRP: Verified
PRP without proof (not generated)
2017-10-17Oliver KruseC-PRP
M1190069/1031665894408840036716449 : 73B7DC4F6DBAA7BC
PRP: Verified
PRP without proof (not generated)
2017-09-29Oliver KruseC-PRP
M1190069/1031665894408840036716449 : 73B7DC4F6DBAA7BC
PRP: Verified
PRP without proof (not generated)
2011-11-06Andriy MakukhaF-ECM
Factor: 1031665894408840036716449
2009-02-18Sturle SundeNF
no factor from 2^60 to 2^61