Marin Mersenne 2^P-1
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MnStatusDetails
11261071Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
83689818385387334861692272.82024-09-05 15:32:42
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
Verified (Factored)2001-02-11Fernando QuinonesEBDA62C427F88D9A3839349
Verified (Factored)2004-05-25Terry S. ArnoldEBDA62C427F88D9A89903
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2024-09-06vshC5175083F3ABD3551159740053
History
DateUserTypeResult
2025-01-09vshNF-PM1
B1=10000000, B2=20021278200
2024-09-06Christopher BrowningCERT
PRP Certification
Proof certified good
2024-09-06vshC-PRP
M11261071/8368981838538733486169 : C5175083F3ABD355
PRP proof power = 8
PRP: Verified
Proof certified good
2024-09-05vshF
Factor: 8368981838538733486169 / TF: 72-73
2021-12-20LaurVNF-PM1
B1=6189107, B2=185673210
2021-10-30SRBaseNF
no factor from 2^71 to 2^72
2021-08-14SRBaseNF
no factor from 2^70 to 2^71
2021-08-06SRBaseNF
no factor from 2^69 to 2^70
2017-12-27ramgeisNF
no factor from 2^68 to 2^69
2017-12-27ramgeisNF
no factor from 2^67 to 2^68
2015-12-28VictordeHollanderNF
no factor from 2^66 to 2^67
2015-05-24NesowaNF
no factor from 2^65 to 2^66
2015-02-14Sid & AndyNF-PM1
B1=130000, B2=2437500, E=6
2013-11-21lycornNF
no factor from 2^64 to 2^65