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
3597989Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 271
TF target 264
TF below 2^80 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 10000000
B2 = 20357607270
ECM
DigitsB1Curves
2550000280 / 280
3025000059 / 640
Estimated T-Level: 25.5
LL
StatusDateUserResidueShift
VerifiedSteve SommarsE4188A5950B38F210
Verified1999-07-30Sean MathiasE4188A5950B38F213516351
History
DateUserTypeResult
2025-06-10JossNF-PM1
B1=10000000, B2=20357607270
2025-06-09JossNF-PM1
B1=10000000, B2=10261100850
2023-06-16Sid & AndyNF-PM1
B1=5700000, B2=17699291610
2022-10-30JossNF-PM1
B1=1000000, B2=250704300
2022-09-27JossNF-PM1
B1=1000000, B2=130364850
2021-11-22ArtyomPNF-PP1
Start=6/5, B1=50000, B2=2500000
2021-11-22ArtyomPNF-PP1
Start=2/7, B1=50000, B2=2500000
2021-03-17-Anonymous-NF
no factor from 2^70 to 2^71
2021-03-17-Anonymous-NF
no factor from 2^69 to 2^70
2020-12-19axnNF
no factor from 2^68 to 2^69
2020-02-20BigBrotherNF-PM1
B1=3000000, B2=90000000, E=12
2018-06-18TJAOINF
no factor from 2^67 to 2^68
2017-03-03Squeeky_SquirrelNF-PM1
B1=225000, B2=6581250, E=12
2017-02-26JossNF-PM1
B1=241228, B2=2412280, E=6
2017-02-04JossNF-PM1
B1=201024
2017-01-29JossNF-PM1
B1=167520
2017-01-25Gordon SpenceNF
no factor from 2^66 to 2^67
2016-12-27JossNF-PM1
B1=129600
2016-06-05JossNF-PM1
B1=108000, B2=3240000, E=6
2016-02-24ramgeisNF
no factor from 2^65 to 2^66
2015-02-07VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-07VictordeHollanderNF
no factor from 2^63 to 2^64
2012-07-02GrunwalderGIMPNF
no factor from 2^1 to 2^63
2012-01-03Squeeky_SquirrelNF-PM1
B1=90000, B2=1620000, E=6
2011-06-06markrNF
no factor from 2^61 to 2^62
2009-07-11Carsten KossendeyNF-PM1
B1=20000, B2=245000
2009-03-14S485122NF
no factor from 2^60 to 2^61