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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Exponent Range:










MnStatusDetails
8681TF
No factors below 266
TF target 244
TF below 2^165 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 67000000000
B2 = 265422648792401100
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000010093 / 40830
Estimated T-Level: 51.2
LL
StatusDateUserResidueShift
VerifiedUnknown3A310
VerifiedGeorge Woltman884327EF030E3A310
VerifiedBrian J. Beesley884327EF030E3A310
Verified2015-04-11MadPoo884327EF030E3A317681
History
DateUserTypeResult
2023-08-19masserNF-PP1
Start=6/5, B1=960000000, B2=171840000000
2023-08-11JacobZNF-PM1
B1=67000000000, B2=265422648792401100
2023-07-25masserNF-PM1
B1=67000000000, B2=80718504723606750
2023-07-10masserNF-PP1
Start=87/67, B1=960000000, B2=38400000000
2022-02-28Anton RepkoNF
no factor from 2^64 to 2^66
2021-05-12ATHNF-PP1
Start=2/7, B1=1000000000, B2=241000000000
2021-01-06Ruslan BorisovNF
no factor from 2^64 to 2^65
2018-11-06snme2pm1NF
no factor from 2^63 to 2^64
2016-11-12-Anonymous-NF-PM1
B1=100000000000, B2=1000000000000, E=12
2016-10-30snme2pm1NF
no factor from 2^62 to 2^63
2016-06-21mikrNF-PM1
B1=50000000000, B2=4000000000000, E=12
2016-05-18-Anonymous-NF-PM1
B1=10000000000, B2=100000000000, E=12
2016-02-23LaurVNF
no factor from 2^57 to 2^58
2015-07-29Sid & AndyNF
no factor from 2^61 to 2^62
2015-04-11MadPooC-LL
884327EF030E3A31
2015-02-02JayderNF-PM1
B1=1308096280, B2=81101969375, E=12
2012-11-08bcp19NF
no factor from 2^60 to 2^61
2010-07-20George WoltmanNF
no factor from 2^59 to 2^60
2010-07-20George WoltmanNF
no factor from 2^58 to 2^59