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

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Exponent Range:










MnStatusDetails
8180143Factored
FactorDigitsBitsDate
34723501649112426272420712581.52022-01-22 20:14:10
62014641620640803565726169892555021374339128.92022-01-22 20:14:10
ECM
DigitsB1Curves
25500006 / 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)2000-03-22Andrzej KlysiakF3D91AF53091D2C57573819
Verified (Factored)2002-12-31Ron LavalleeF3D91AF53091D2C51117852
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-01-22Flaukrotist7240618DE580392E2731718253
P-1 factors
DateFactorB1B2
2022-01-2221533655105834370500440926038187871302357315547641896886519817531500000800578350
History
DateUserTypeResult
2022-01-23curtiscCERT
PRP Certification
Proof certified good
2022-01-22FlaukrotistC-PRP
M8180143/3472350164911242627242071/620146416206408035657261698925550213743 : 7240618DE580392E
PRP proof power = 8
PRP: Verified
Proof certified good
2022-01-22FlaukrotistF-PM1
Factor: 2153365510583437050044092603818787130235731554764189688651981753 / (P-1, B1=1500000, B2=800578350)
2021-10-05SRBaseNF
no factor from 2^71 to 2^72
2021-08-26SRBaseNF
no factor from 2^70 to 2^71
2021-08-19SRBaseNF
no factor from 2^69 to 2^70
2020-01-17TJAOINF
no factor from 2^68 to 2^69
2018-07-09chuenkitNF
no factor from 2^67 to 2^68
2015-12-07snme2pm1NF
no factor from 2^66 to 2^67
2015-05-28snme2pm1NF
no factor from 2^65 to 2^66
2013-12-28David CampeauNF
no factor from 2^64 to 2^65
2013-08-26David CampeauNF
no factor from 2^63 to 2^64
2012-11-17NesowaNF-PM1
B1=100000, B2=1975000, E=6