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
1884193TF
No factors below 268
TF target 261
TF below 2^81 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 25000000
B2 = 69189473430
ECM
DigitsB1Curves
2550000280 / 280
30250000106 / 640
Estimated T-Level: 25.8
LL
StatusDateUserResidueShift
VerifiedGeorge WoltmanA618B629E1DD56680
Verified1998-12-13Christopher HaackA618B629E1DD56681688693
Verified2015-07-04MadPooA618B629E1DD5668508608
History
DateUserTypeResult
2024-02-21kurlyNF-PM1
B1=25000000, B2=69189473430
2023-06-13JossNF-PM1
B1=2149908, B2=8472393930
2023-01-10JossNF-PM1
B1=2149908, B2=1676995320
2022-10-31masserNF-PP1
Start=2/7, B1=800000, B2=25600000
2022-10-29masserNF-PP1
Start=6/5, B1=400000, B2=10800000
2022-10-27masserNF-PP1
Start=140/11, B1=200000, B2=4400000
2019-06-24TJAOINF
no factor from 2^67 to 2^68
2018-11-26JossNF-PM1
B1=2149908, B2=235524125, E=12
2018-05-28TJAOINF
no factor from 2^66 to 2^67
2018-03-18JossNF-PM1
B1=2149908, B2=214990800, E=12
2018-02-17JossNF-PM1
B1=2149908, B2=77396688, E=12
2017-05-28JossNF-PM1
B1=2149908, B2=38698344, E=12
2017-05-13JossNF-PM1
B1=1791590, B2=17915900, E=12
2017-05-06JossNF-PM1
B1=1492992, B2=14929920, E=12
2017-03-01JossNF-PM1
B1=1244160, B2=12441600, E=12
2017-01-21JossNF-PM1
B1=1036800
2016-12-27JossNF-PM1
B1=864000
2016-12-23JossNF-PM1
B1=720000
2016-09-16JossNF-PM1
B1=500000, B2=30000000, E=12
2016-02-23Mark RoseNF
no factor from 2^61 to 2^62
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-10-07Bruno VictalNF-PM1
B1=500000, B2=15000000, E=12
2015-09-13ramgeisNF
no factor from 2^65 to 2^66
2015-07-04MadPooC-LL
A618B629E1DD5668
2015-05-09snme2pm1NF
no factor from 2^64 to 2^65
2015-05-09snme2pm1NF
no factor from 2^63 to 2^64
2012-01-16markrNF-PM1
B1=275000, B2=6000000, E=12
2011-03-08GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-04-01Architects CubedNF
no factor from 2^60 to 2^61