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

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Exponent Range:










MnStatusDetails
1150631TF
No factors below 269
TF target 260
TF below 2^81 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 12000000
B2 = 88140272220
ECM
DigitsB1Curves
2550000280 / 280
30250000100 / 640
Estimated T-Level: 25.8 ⓘ
LL
StatusDateUserResidueShift
VerifiedMorris Thompson5386FAA45434B2100
VerifiedDwayne Towell5386FAA45434B2100
VerifiedRicardo Montiel5386FAA45434B2100
Verified2015-11-11MadPoo5386FAA45434B210471160
PRP
StatusDateUserResidueShiftTypeBase
Verified2020-11-04Ethan O'Connor4CF5DE15458B931A26995013
History
DateUserTypeResult
2022-06-15mikrNF-PM1
B1=12000000, B2=88140272220
2021-10-03MadPooNF
no factor from 2^68 to 2^69
2020-11-05curtiscCERT
PRP Certification
CERT proof power = 6
Proof certified good
2020-11-04Ethan O'ConnorC-PRP
4CF5DE15458B931A
PRP proof power = 6
PRP: Verified
Proof certified good
2019-09-20YxinityNF
no factor from 2^67 to 2^68
2018-10-12JossNF-PM1
B1=1150631, B2=126569410, E=12
2018-04-17JossNF-PM1
B1=1150631, B2=115063100, E=12
2017-02-27Smok_bmv NF
no factor from 2^66 to 2^67
2016-07-27Bruno VictalNF-PM1
B1=2500000, B2=62500000, E=12
2016-07-26Bruno VictalNF-PM1
B1=2500000, B2=62500000, E=12
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-11-11MadPooC-LL
5386FAA45434B210
2015-08-04omylistNF
no factor from 2^65 to 2^66
2015-01-10lycornNF
no factor from 2^64 to 2^65
2014-12-28Matthias WurtingerNF
no factor from 2^63 to 2^64
2013-10-07David CampeauNF-PM1
B1=1220000, B2=35380000, E=12
2012-10-07dbaughNF
no factor from 2^62 to 2^63
2011-05-09XyzzyNF
no factor from 2^61 to 2^62
2009-04-14Sturle SundeNF
no factor from 2^60 to 2^61