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
6900977Factored
FactorDigitsBitsDate
11708465151175722815418712580.02021-11-19 10:28:04
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)1999-03-15Josh Atwell65B91F8C2AA9AF670
Verified (Factored)2002-01-02Mango's Team65B91F8C2AA9AF674115474
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-12-01MartimPaiva2A0AA55CF08DC86F1138191653
P-1 factors
DateFactorB1B2
2021-11-19117084651511757228154187140000004000000
History
DateUserTypeResult
2021-12-01Joe S.CERT
PRP Certification
Proof certified good
2021-12-01MartimPaivaC-PRP
M6900977/1170846515117572281541871 : 2A0AA55CF08DC86F
PRP proof power = 8
PRP: Verified
Proof certified good
2021-11-19Seth_TrF-PM1
Factor: 1170846515117572281541871 / (P-1, B1=4000000)
2021-09-25SRBaseNF
no factor from 2^71 to 2^72
2021-08-10SRBaseNF
no factor from 2^70 to 2^71
2020-12-20takahashiNF
no factor from 2^69 to 2^70
2020-01-06takahashiNF-PM1
B1=600000, B2=12000000, E=12
2019-11-25mnd9NF
no factor from 2^68 to 2^69
2018-02-27-Anonymous-NF
no factor from 2^67 to 2^68
2016-03-31Gordon SpenceNF
no factor from 2^66 to 2^67
2015-06-21VictordeHollanderNF
no factor from 2^65 to 2^66
2014-02-17lycornNF
no factor from 2^64 to 2^65
2014-02-09NesowaNF
no factor from 2^63 to 2^64
2011-11-19James HeinrichNF-PM1
B1=130000, B2=2665000, E=6