Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
1622879TF
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 = 611128578060
ECM
DigitsB1Curves
2550000280 / 280
30250000105 / 640
Estimated T-Level: 25.8 ⓘ
LL
StatusDateUserResidueShift
VerifiedGeorge Ray3152D0416DEB3BBF0
Verified1998-11-07Nuutti Kuosa3152D0416DEB3BBF1297688
Verified2015-07-19MadPoo3152D0416DEB3BBF1155697
History
DateUserTypeResult
2022-11-28Naegi MakotoNF-PM1
B1=25000000, B2=611128578060
2021-06-05Team_InspectorNF-PP1
Start=2/7, B1=1000000, B2=50000000
2019-08-06TJAOINF
no factor from 2^67 to 2^68
2018-02-24VictordeHollanderNF-PM1
B1=10000000, B2=200000000, E=12
2018-02-22JossNF-PM1
B1=2067454, B2=82698160, E=12
2018-02-08JossNF-PM1
B1=2067454, B2=41349080, E=12
2017-11-17TJAOINF
no factor from 2^66 to 2^67
2017-07-18JossNF-PM1
B1=2067454, B2=20674540, E=12
2016-12-08JossNF-PM1
B1=1622879
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2016-02-23Mark RoseNF
no factor from 2^61 to 2^62
2015-10-11ramgeisNF
no factor from 2^65 to 2^66
2015-07-19MadPooC-LL
3152D0416DEB3BBF
2015-04-30monstNF
no factor from 2^64 to 2^65
2015-04-29omylistNF
no factor from 2^63 to 2^64
2011-12-01BigBrotherNF-PM1
B1=1000000, B2=20000000, E=12
2010-08-13GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-05-05Architects CubedNF
no factor from 2^60 to 2^61