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

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Exponent Range:










MnStatusDetails
1441259TF
No factors below 268
TF target 260
TF below 2^81 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 16300000
B2 = 108150020550
ECM
DigitsB1Curves
2550000280 / 280
30250000105 / 640
Estimated T-Level: 25.8
LL
StatusDateUserResidueShift
VerifiedKonrad BielerA6953E9AF2DA2B410
Verified1999-01-02David CampeauA6953E9AF2DA2B41303332
Verified2015-07-19MadPooA6953E9AF2DA2B41533289
History
DateUserTypeResult
2023-10-06Sid & AndyNF-PM1
B1=16300000, B2=108150020550
2023-07-04JossNF-PM1
B1=1441259, B2=10475509590
2023-03-04JossNF-PM1
B1=1441259, B2=4511289510
2022-12-21JossNF-PM1
B1=1441259, B2=1529215380
2020-05-04YxinityNF
no factor from 2^67 to 2^68
2018-10-15JossNF-PM1
B1=1441259, B2=158538490, E=12
2018-05-31JossNF-PM1
B1=1441259, B2=144125900, E=12
2018-04-09TJAOINF
no factor from 2^66 to 2^67
2016-08-27Bruno VictalNF-PM1
B1=2500000, B2=62500000, E=12
2016-08-20Bruno VictalNF-PM1
B1=2500000, B2=62500000, E=12
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2016-02-23Mark RoseNF
no factor from 2^61 to 2^62
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-09-15ramgeisNF
no factor from 2^65 to 2^66
2015-07-19MadPooC-LL
A6953E9AF2DA2B41
2015-05-03alpertronNF-PM1
B1=2000000, B2=60000000, E=12
2015-05-01JossNF-PM1
B1=928604
2015-04-08JossNF-PM1
B1=767442
2015-03-22snme2pm1NF
no factor from 2^64 to 2^65
2015-03-22snme2pm1NF
no factor from 2^63 to 2^64
2015-03-10JossNF-PM1
B1=576591
2015-03-03JossNF-PM1
B1=524174
2015-02-25JossNF-PM1
B1=476522
2015-02-13JossNF-PM1
B1=393820
2015-01-30JossNF-PM1
B1=358019
2015-01-27JossNF-PM1
B1=325472
2014-11-14JossNF-PM1
B1=244533
2011-05-07GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-05-22Rob_DeeNF-PM1
B1=200000, B2=5000000, E=6
2010-05-21Rob_DeeNF-PM1
B1=200000, B2=4000000, E=6
2010-05-20Rob_DeeNF-PM1
B1=200000, B2=3000000, E=6
2010-05-19Rob_DeeNF-PM1
B1=200000, B2=2000000, E=6
2010-05-18Rob_DeeNF-PM1
B1=200000, B2=1000000, E=6
2010-05-17Rob_DeeNF-PM1
B1=100000, B2=200000
2010-05-11Architects CubedNF
no factor from 2^60 to 2^61