Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
249499Factored
FactorDigitsBitsDate
3586927607966515603229851190109216688487941134.72024-03-05 16:10:45
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000518 / 1566
Estimated T-Level: 31.7
TF below 2^100 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski339B0
Verified (Factored)Unknown739B0
Verified (Factored)Ken Kiefer640D4C855DE8739B0
Verified (Factored)Brian J. Beesley640D4C855DE8739B0
Verified (Factored)Eivind Triel640D4C855DE8739B184448
Verified (Factored)2016-06-01MadPoo640D4C855DE8739B99912
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2024-03-05lycorn8C3F9CFF737F141F116968653
History
DateUserTypeResult
2024-03-05PerigCERT
PRP Certification
Proof certified good
2024-03-05lycornC-PRP
M249499/35869276079665156032298511901092166884879 : 8C3F9CFF737F141F
PRP proof power = 5
PRP: Verified
Proof certified good
2024-03-05lycornF-ECM
Factor: 35869276079665156032298511901092166884879 / (ECM curve 98, B1=1100000, B2=11486399925, Sigma=8583670081163136)
2023-02-11masserNF-PP1
Start=6/5, B1=30000000, B2=990000000
2023-02-05masserNF-PP1
Start=2/7, B1=30000000, B2=990000000
2023-02-05masserNF-PP1
Start=175/71, B1=30000000, B2=960000000
2022-05-23Sid & AndyNF-PM1
B1=262000000, B2=2850947509410
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2021-12-05Seth_TrNF-PM1
B1=120000000, B2=57783635910
2021-12-05Seth_TrNF-PM1
B1=120000000
2019-12-31Gordon SpenceNF
no factor from 2^65 to 2^66
2018-03-20BloodERazorNF
no factor from 2^64 to 2^65
2016-06-01MadPooC-LL
640D4C855DE8739B
2016-05-13NumberwangNF-PM1
B1=2790, B2=69750
2016-02-23Mark RoseNF
no factor from 2^57 to 2^58
2016-01-27Gordon SpenceNF
no factor from 2^63 to 2^64
2016-01-27Gordon SpenceNF
no factor from 2^62 to 2^63
2015-08-11snme2pm1NF
no factor from 2^61 to 2^62
2014-12-25Denial140NF-PM1
B1=10000000, B2=250000000, E=12
2013-10-13David CampeauNF-PM1
B1=2560000, B2=74240000, E=12
2013-07-13lycornNF
no factor from 2^60 to 2^61
2012-02-26JossNF-PM1
B1=2512468
2011-07-24JossNF-PM1
B1=2009974
2011-02-07JossNF-PM1
B1=2000000
2009-01-25Sturle SundeNF
no factor from 2^59 to 2^60
2008-12-31Sturle SundeNF
no factor from 2^58 to 2^59