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

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Exponent Range:










MnStatusDetails
1422677TF
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 = 16500000
B2 = 113091148170
ECM
DigitsB1Curves
2550000280 / 280
30250000107 / 640
Estimated T-Level: 25.8
LL
StatusDateUserResidueShift
VerifiedDan Spieler9DBF3368192A92D00
VerifiedCornelius Caesar9DBF3368192A92D00
Verified2015-07-06MadPoo9DBF3368192A92D0942287
History
DateUserTypeResult
2023-09-30Sid & AndyNF-PM1
B1=16500000, B2=113091148170
2023-07-01JossNF-PM1
B1=1422677, B2=10473434790
2023-03-02JossNF-PM1
B1=1422677, B2=4509214710
2022-12-21JossNF-PM1
B1=1422677, B2=1527152550
2020-04-07YxinityNF
no factor from 2^67 to 2^68
2018-10-15JossNF-PM1
B1=1422677, B2=156494470, E=12
2018-05-25JossNF-PM1
B1=1422677, B2=142267700, E=12
2018-04-30TJAOINF
no factor from 2^66 to 2^67
2016-08-27Bruno VictalNF-PM1
B1=2500000, B2=62500000, E=12
2016-08-17Bruno VictalNF-PM1
B1=2500000, B2=62500000, E=12
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2016-02-23Mark RoseNF
no factor from 2^61 to 2^62
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-09-29ramgeisNF
no factor from 2^65 to 2^66
2015-07-06MadPooC-LL
9DBF3368192A92D0
2015-03-17snme2pm1NF
no factor from 2^64 to 2^65
2015-03-17snme2pm1NF
no factor from 2^63 to 2^64
2015-03-11alpertronNF-PM1
B1=2000000, B2=60000000, E=12
2015-02-20JossNF-PM1
B1=444882
2015-02-15JossNF-PM1
B1=404439
2015-01-15JossNF-PM1
B1=367672
2014-11-10JossNF-PM1
B1=245115
2011-04-05GrunwalderGIMPNF
no factor from 2^1 to 2^63
2009-07-30markrNF-PM1
B1=200000, B2=5000000, E=6
2009-02-15Sturle SundeNF
no factor from 2^60 to 2^61