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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MnStatusDetails
9365891Factored
FactorDigitsBitsDate
4979837544422721752588541241789112527938125.22022-12-24 19:17:40
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2000-09-15decourt015A1ED85E1455DC7116313
Verified (Factored)2003-05-11Marc Getty / Phil Fizur015A1ED85E1455DC3213513
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-12-29rucioFE060F38ED4DBADF1572746953
P-1 factors
DateFactorB1B2
2022-12-244979837544422721752588541241789112527920000004771857090
History
DateUserTypeResult
2022-12-29curtiscCERT
PRP Certification
Proof certified good
2022-12-29rucioC-PRP
M9365891/49798375444227217525885412417891125279 : FE060F38ED4DBADF
PRP proof power = 8
PRP: Verified
Proof certified good
2022-12-24ThaF-PM1
Factor: 49798375444227217525885412417891125279 / (P-1, B1=2000000, B2=4771857090)
2020-12-13-Anonymous-NF
no factor from 2^70 to 2^71
2020-12-13-Anonymous-NF
no factor from 2^69 to 2^70
2019-09-09mnd9NF
no factor from 2^68 to 2^69
2017-04-26snme2pm1NF
no factor from 2^67 to 2^68
2016-05-17snme2pm1NF
no factor from 2^66 to 2^67
2015-05-08VictordeHollanderNF
no factor from 2^65 to 2^66
2013-09-05NesowaNF
no factor from 2^64 to 2^65
2012-08-30James HeinrichNF-PM1
B1=175000, B2=3850000, E=6