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
9473TF
No factors below 266
TF target 244
TF below 2^164 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 61000000000
B2 = 254995794420917550
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
551100000007829 / 40830
Estimated T-Level: 51.0
LL
StatusDateUserResidueShift
VerifiedUnknown04A70
VerifiedGeorge Woltman02126CD21C5684A70
VerifiedBrian J. Beesley02126CD21C5684A70
Verified2015-04-11MadPoo02126CD21C5684A74480
History
DateUserTypeResult
2023-08-19masserNF-PP1
Start=6/5, B1=870000000, B2=155730000000
2023-07-09masserNF-PP1
Start=190/67, B1=870000000, B2=34800000000
2023-06-29JacobZNF-PM1
B1=61000000000, B2=254995794420917550
2022-05-27Anton RepkoNF
no factor from 2^64 to 2^66
2021-05-12ATHNF-PP1
Start=2/7, B1=1000000000, B2=241000000000
2021-01-04Ruslan BorisovNF
no factor from 2^64 to 2^65
2018-09-22snme2pm1NF
no factor from 2^63 to 2^64
2016-11-05-Anonymous-NF-PM1
B1=100000000000, B2=1000000000000, E=12
2016-10-27mikrNF-PM1
B1=50000000000, B2=4000000000000, E=12
2016-10-14snme2pm1NF
no factor from 2^62 to 2^63
2016-02-23LaurVNF
no factor from 2^57 to 2^58
2015-04-11MadPooC-LL
02126CD21C5684A7
2015-04-03snme2pm1NF
no factor from 2^61 to 2^62
2012-11-08bcp19NF
no factor from 2^60 to 2^61
2012-05-23BloodIceNF-PM1
B1=10000000000
2010-08-10chalsallNF
no factor from 2^59 to 2^60
2010-07-20George WoltmanNF
no factor from 2^58 to 2^59