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

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Exponent Range:










MnStatusDetails
6985367Factored
FactorDigitsBitsDate
373416540827205584651976306892994.92021-11-07 02:26:04
ECM
DigitsB1Curves
25500006 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1999-10-15C. Cooper / S. Boone77BA3AAFFC203C6C1924009
Verified (Factored)2002-05-25Shane Sanford77BA3AAFFC203C6C1902969
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-11-08Tucker Kao57E091A65FD3D3E01497250553
P-1 factors
DateFactorB1B2
2021-11-0737341654082720558465197630689200000058000000
History
DateUserTypeResult
2021-11-08YoonCERT
PRP Certification
Proof certified good
2021-11-08Tucker KaoC-PRP
M6985367/37341654082720558465197630689 : 57E091A65FD3D3E0
PRP proof power = 8
PRP: Verified
Proof certified good
2021-11-07Seth_TrF-PM1
Factor: 37341654082720558465197630689 / (P-1, B1=2000000, B2=58000000, E=12)
2021-09-25SRBaseNF
no factor from 2^71 to 2^72
2021-09-07SRBaseNF
no factor from 2^70 to 2^71
2021-08-11takahashiNF
no factor from 2^69 to 2^70
2020-04-10TJAOINF
no factor from 2^68 to 2^69
2018-02-27-Anonymous-NF
no factor from 2^67 to 2^68
2016-04-26Gordon SpenceNF
no factor from 2^66 to 2^67
2015-07-03VictordeHollanderNF
no factor from 2^65 to 2^66
2014-02-14lycornNF
no factor from 2^64 to 2^65
2014-02-09NesowaNF
no factor from 2^63 to 2^64
2011-09-07Carsten KossendeyNF-PM1
B1=445000, B2=13572500, E=12