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

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Exponent Range:










MnStatusDetails
1596029TF
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 = 20500000
B2 = 78907728900
ECM
DigitsB1Curves
2550000280 / 280
30250000105 / 640
Estimated T-Level: 25.8 ⓘ
LL
StatusDateUserResidueShift
VerifiedGuy PaquetCBF75EBDE215C3260
Verified1998-11-07Phil NilesCBF75EBDE215C3261593674
Verified2015-07-20MadPooCBF75EBDE215C3261102423
History
DateUserTypeResult
2023-10-19Sid & AndyNF-PM1
B1=20500000, B2=78907728900
2023-06-30JossNF-PM1
B1=10001000, B2=8289448440
2023-02-15JossNF-PM1
B1=10001000, B2=3563469000
2023-01-02JossNF-PM1
B1=10001000, B2=1200523170
2018-06-11ramgeisNF
no factor from 2^67 to 2^68
2017-12-18TJAOINF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2016-02-23Mark RoseNF
no factor from 2^61 to 2^62
2015-10-11ramgeisNF
no factor from 2^65 to 2^66
2015-07-20MadPooC-LL
CBF75EBDE215C326
2015-04-21VictordeHollanderNF-PM1
B1=10000000, B2=200000000, E=12
2015-03-04snme2pm1NF
no factor from 2^64 to 2^65
2015-03-04snme2pm1NF
no factor from 2^63 to 2^64
2013-11-28David CampeauNF-PM1
B1=980000, B2=28420000, E=12
2011-02-04James HeinrichNF-PM1
B1=85000, B2=1445000, E=6
2010-07-04GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-05-03Architects CubedNF
no factor from 2^60 to 2^61