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

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Exponent Range:










MnStatusDetails
4567TF
No factors below 266
TF target 244
TF below 2^181 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 70000000000
B2 = 701928325533134700
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000040830 / 40830
6026000000020765 / 105362
Estimated T-Level: 56.0 ⓘ
LL
StatusDateUserResidueShift
VerifiedUnknown78B70
VerifiedGeorge Woltman956CA809D42FF8B70
VerifiedBrian J. Beesley956CA809D42FF8B70
Verified2015-04-11MadPoo956CA809D42FF8B72943
History
DateUserTypeResult
2023-08-15masserNF-PP1
Start=6/5, B1=1990000000, B2=356210000000
2023-07-10masserNF-PP1
Start=152/17, B1=1990000000, B2=79600000000
2023-05-25-Anonymous-NF-PM1
B1=70000000000, B2=701928325533134700
2022-06-19Anton RepkoNF
no factor from 2^64 to 2^66
2021-05-12ATHNF-PP1
Start=2/7, B1=1000000000, B2=241000000000
2021-02-06Ruslan BorisovNF
no factor from 2^64 to 2^65
2018-07-17snme2pm1NF
no factor from 2^63 to 2^64
2016-12-15snme2pm1NF
no factor from 2^62 to 2^63
2016-02-23LaurVNF
no factor from 2^57 to 2^58
2015-06-17Sid & AndyNF
no factor from 2^61 to 2^62
2015-04-11MadPooC-LL
956CA809D42FF8B7
2012-09-29bcp19NF
no factor from 2^60 to 2^61
2011-02-02monstNF
no factor from 2^58 to 2^60
2009-09-22James HintzNF-PM1
B1=123456789012, B2=1234567890123, E=12