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

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Exponent Range:










MnStatusDetails
6971TF
No factors below 266
TF target 244
TF below 2^186 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 35000000000
B2 = 143589103727719650
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000040830 / 40830
6026000000050792 / 105362
Estimated T-Level: 57.4 ⓘ
LL
StatusDateUserResidueShift
VerifiedUnknown6AE50
VerifiedGeorge Woltman5471F7BDE402EAE50
VerifiedBrian J. Beesley5471F7BDE402EAE50
Verified2015-04-11MadPoo5471F7BDE402EAE5882
History
DateUserTypeResult
2023-08-20-Anonymous-NF-PM1
B1=35000000000, B2=143589103727719650
2023-08-17masserNF-PP1
Start=6/5, B1=1230000000, B2=220170000000
2023-07-16masserNF-PM1
B1=72000000000, B2=45768077382777750
2023-07-10masserNF-PP1
Start=95/31, B1=1230000000, B2=49200000000
2022-03-04Anton RepkoNF
no factor from 2^64 to 2^66
2021-05-13ATHNF-PP1
Start=2/7, B1=1000000000, B2=241000000000
2021-01-26Ruslan BorisovNF
no factor from 2^64 to 2^65
2017-09-14snme2pm1NF
no factor from 2^63 to 2^64
2016-11-29snme2pm1NF
no factor from 2^62 to 2^63
2016-11-25-Anonymous-NF-PM1
B1=100000000000, B2=1000000000000, E=12
2016-11-04mikrNF-PM1
B1=60000000000, B2=4800000000000, E=12
2016-02-23LaurVNF
no factor from 2^57 to 2^58
2015-08-23Sid & AndyNF
no factor from 2^61 to 2^62
2015-04-11MadPooC-LL
5471F7BDE402EAE5
2013-04-08Le ComteNF-PM1
B1=10000000000
2012-11-08bcp19NF
no factor from 2^60 to 2^61
2010-08-10chalsallNF
no factor from 2^59 to 2^60
2010-08-10chalsallNF
no factor from 2^58 to 2^59