Marin Mersenne 2^P-1
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Finding World Record Primes Since 1996

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MnStatusDetails
11525671Factored
FactorDigitsBitsDate
4175663159071663903432168.52017-10-10 21:29:17
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)Andrea Dyballa836DD5D0607358F07934015
Bad2002-01-15Thomas HonoldD82CD291D5700DD24374238
Verified (Factored)2002-11-24Ars Technica Team Prime Rib836DD5D0607358F02363280
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-08-21MarkSE3C598EE25D3048B1792450753
History
DateUserTypeResult
2021-08-21curtiscCERT
PRP Certification
Proof certified good
2021-08-21MarkSC-PRP
M11525671/417566315907166390343 : E3C598EE25D3048B
PRP proof power = 8
PRP: Verified
Proof certified good
2017-10-10ATHF-ECM
Factor: 417566315907166390343 / (ECM curve 1, B1=50000, B2=5000000)
2016-01-15VictordeHollanderNF
no factor from 2^66 to 2^67
2014-12-20NesowaNF
no factor from 2^65 to 2^66
2013-11-08lycornNF
no factor from 2^64 to 2^65