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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MnStatusDetails
6902219Factored
FactorDigitsBitsDate
307022792751725797852812374.72017-03-29 10:16:40
ECM
DigitsB1Curves
25500004 / 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)1999-07-27Simon Boyd54ED019D7D00F7D21442498
Verified (Factored)2001-10-13Pat Lett54ED019D7D00F7D22059057
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2018-01-21Oliver Kruse13BA145A103A0B5B1171218153
Verified2019-01-22Zero13BA145A103A0B5B1375677253
History
DateUserTypeResult
2019-01-22ZeroC-PRP
M6902219/30702279275172579785281 : 13BA145A103A0B5B
PRP: Verified
PRP without proof (not generated)
2018-01-21Oliver KruseC-PRP
M6902219/30702279275172579785281 : 13BA145A103A0B5B
PRP: Verified
PRP without proof (not generated)
2017-03-29bamF-ECM
Factor: 30702279275172579785281 / (ECM curve 1, B1=50000, B2=5000000)
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