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

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MnStatusDetails
5304877Factored
FactorDigitsBitsDate
11610964898223001740182561651114433769739126.42022-08-08 16:03:58
ECM
DigitsB1Curves
25500009 / 280
Estimated T-Level: 20.2 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-12-27Martin KosterE26B43212A140EFE0
Verified (Factored)2000-07-25Nicolau C. SaldanhaE26B43212A140EFE276623
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-08-10LordJulius6B7138381E9C87AA1498350653
P-1 factors
DateFactorB1B2
2022-08-08116109648982230017401825616511144337697400000010285831710
History
DateUserTypeResult
2022-08-10curtiscCERT
PRP Certification
Proof certified good
2022-08-10LordJuliusC-PRP
M5304877/116109648982230017401825616511144337697 : 6B7138381E9C87AA
PRP proof power = 7
PRP: Verified
Proof certified good
2022-08-08Sid & AndyF-PM1
Factor: 116109648982230017401825616511144337697 / (P-1, B1=4000000, B2=10285831710)
2022-02-05mikrNF
no factor from 2^70 to 2^71
2021-12-09TJAOINF
no factor from 2^69 to 2^70
2020-09-21TJAOINF
no factor from 2^68 to 2^69
2019-05-25KingNF-PM1
B1=1000000, B2=22500000
2018-06-19ramgeisNF
no factor from 2^67 to 2^68
2016-06-11Gordon SpenceNF
no factor from 2^66 to 2^67
2015-08-15snme2pm1NF
no factor from 2^65 to 2^66
2014-12-23VictordeHollanderNF
no factor from 2^64 to 2^65
2014-12-23VictordeHollanderNF
no factor from 2^63 to 2^64
2010-09-07Squeeky_SquirrelNF-PM1
B1=60000, B2=990000, E=6
2009-08-23Carsten KossendeyNF-PM1
B1=25000, B2=343750
2009-06-02GrunwalderGIMPNF
no factor from 2^62 to 2^63