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

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Exponent Range:










MnStatusDetails
1753TF
No factors below 266
TF target 244
TF below 2^205 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 216000000000
B2 = 578465311533028920
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000040830 / 40830
60260000000105362 / 105362
65800000000122681 / 194238
Estimated T-Level: 63.2
LL
StatusDateUserResidueShift
VerifiedUnknown6C2D0
VerifiedGeorge WoltmanA984D3CA0516EC2D0
VerifiedGord PalametaA984D3CA0516EC2D1056
Verified2015-04-11MadPooA984D3CA0516EC2D1478
History
DateUserTypeResult
2023-08-09masserNF-PP1
Start=2/7, B1=5890000000, B2=1054310000000
2023-07-16masserNF-PP1
Start=163/67, B1=5890000000, B2=235600000000
2023-06-29masserNF-PM1
B1=216000000000, B2=578465311533028920
2021-05-12ATHNF-PP1
Start=6/5, B1=1000000000, B2=223000000000
2021-04-27gLaussNF-PP1
Start=2/7, B1=100000000, B2=10000000000
2020-12-28Ruslan BorisovNF
no factor from 2^65 to 2^66
2018-06-06Andriy MakukhaNF
no factor from 2^64 to 2^65
2017-11-18snme2pm1NF
no factor from 2^63 to 2^64
2016-10-02James HintzNF-PM1
B1=3617913835169, B2=289433106813520, E=12
2016-06-21snme2pm1NF
no factor from 2^62 to 2^63
2016-02-20James HintzNF-PM1
B1=1996677230704, B2=159734178456320, E=12
2015-07-08MadPooNF-PM1
B1=2451633292673, B2=10000000000000, E=12
2015-04-11MadPooC-LL
A984D3CA0516EC2D
2014-07-21LaurVNF
no factor from 2^61 to 2^62
2014-01-09Sid & AndyNF
no factor from 2^60 to 2^61
2013-04-02Le ComteNF-PM1
B1=100000000000, B2=10000000000000, E=12
2010-12-23monstNF
no factor from 2^59 to 2^60
2009-06-22James HintzNF-PM1
B1=27500000000, B2=275000000000, E=12
2008-12-06Matthias WurtingerNF-PM1
B1=25000000000, B2=50000000000, E=12
2008-12-05Matthias WurtingerNF-PM1
B1=20000000000, B2=40000000000, E=12
2008-12-04Matthias WurtingerNF-PM1
B1=15000000000, B2=30000000000, E=12
2008-12-01Matthias WurtingerNF-PM1
B1=10000000000, B2=20000000000, E=12