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

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Exponent Range:










MnStatusDetails
2310551Factored
FactorDigitsBitsDate
4542988438212732187177240572788.62021-08-01 07:14:11
ECM
DigitsB1Curves
2550000157 / 280
Estimated T-Level: 22.8 ⓘ
TF below 2^71 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-02-08Terry S. ArnoldFF2D231759E92DCC0
Verified (Factored)1999-05-30Larry RutledgeFF2D231759E92DCC1863890
Verified (Factored)2018-05-03kkmrkkblmbrbkFF2D231759E92DCC925998
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-08-01SRJ2877F4CC8FEC3C0BDA0D1223804353
History
DateUserTypeResult
2021-08-01GIMPS-PRIMCERT
PRP Certification
Proof certified good
2021-08-01SRJ2877C-PRP
M2310551/454298843821273218717724057 : F4CC8FEC3C0BDA0D
PRP proof power = 7
PRP: Verified
Proof certified good
2021-08-01nordiF-ECM
Factor: 454298843821273218717724057 / (ECM curve 3, B1=50000, B2=6750000, Sigma=87487189318977)
2021-07-12TJAOINF
no factor from 2^68 to 2^69
2019-04-29TJAOINF
no factor from 2^67 to 2^68
2018-05-03kkmrkkblmbrbkC-LL
FF2D231759E92DCC
2018-01-20Sid & AndyNF-PM1
B1=6000000, B2=180000000, E=12
2017-05-30Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-10-22ramgeisNF
no factor from 2^65 to 2^66
2015-03-03VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-03VictordeHollanderNF
no factor from 2^63 to 2^64
2013-12-06Jerry HallettNF
no factor from 2^62 to 2^63
2012-05-23Sebastian HornbostelNF
no factor from 2^61 to 2^62
2010-02-15BudNF-PM1
B1=500000, B2=10000000, E=12
2009-01-15Sturle SundeNF
no factor from 2^60 to 2^61