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

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MnStatusDetails
3435011Factored
FactorDigitsBitsDate
245137445037982391398116792684.32021-10-12 08:38:20
ECM
DigitsB1Curves
255000050 / 280
Estimated T-Level: 20.9
TF below 2^64 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Ken KrieselA013B6862F4D860D0
Verified (Factored)1999-07-26John GilbertA013B6862F4D860D996247
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-10-18kutensD114B3770E5071F61152299553
History
DateUserTypeResult
2022-04-10JossNF-PM1
B1=1000000, B2=126668850
2021-10-18Chun sung sooCERT
PRP Certification
Proof certified good
2021-10-18kutensC-PRP
M3435011/24513744503798239139811679 : D114B3770E5071F6
PRP proof power = 7
PRP: Verified
Proof certified good
2021-10-12daveward2005F-ECM
Factor: 24513744503798239139811679 / (ECM curve 7, B1=50000, B2=5000000, Sigma=7912182533419459)
2021-05-06axnNF-PM1
B1=14000000, B2=700000000
2021-01-01axnNF
no factor from 2^68 to 2^69
2018-09-17TJAOINF
no factor from 2^67 to 2^68
2017-02-05Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2015-04-13Gordon SpenceNF
no factor from 2^65 to 2^66
2015-02-07VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-07VictordeHollanderNF
no factor from 2^63 to 2^64
2014-09-16HBendtzNF-PM1
B1=500000, B2=10000000, E=12
2014-07-18JossNF-PM1
B1=78685
2012-08-18GrunwalderGIMPNF
no factor from 2^1 to 2^63
2011-11-02USAFSSNF-PM1
B1=60000, B2=945000, E=6
2011-08-06markrNF
no factor from 2^61 to 2^62
2009-07-06Carsten KossendeyNF-PM1
B1=15000, B2=210000
2009-03-22S485122NF
no factor from 2^60 to 2^61