Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
6944599Factored
FactorDigitsBitsDate
118559005099599137776732373.32021-12-06 22:22:27
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)1999-05-30Jörg Thomsen02B4DEC3105C192B4003746
Verified (Factored)2001-09-16chris clark02B4DEC3105C192B4292942
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-12-13xyuzyz993919C63D5D2A171492702853
Verified2021-12-14LaurV993919C63D5D2A171661994653
P-1 factors
DateFactorB1B2
2021-12-06118559005099599137776732000000258849360
History
DateUserTypeResult
2021-12-14DRobinsonPECERT
PRP Certification
Proof certified good
2021-12-14LaurVC-PRP
M6944599/11855900509959913777673 : 993919C63D5D2A17
PRP proof power = 8
PRP: Verified
Proof certified good
2021-12-13xyuzyzC-PRP
M6944599/11855900509959913777673 : 993919C63D5D2A17
PRP: Verified
PRP without proof (not generated)
2021-12-06Seth_TrF-PM1
Factor: 11855900509959913777673 / (P-1, B1=2000000, B2=258849360)
2021-09-28SRBaseNF
no factor from 2^71 to 2^72
2021-08-11SRBaseNF
no factor from 2^70 to 2^71
2021-07-28takahashiNF
no factor from 2^69 to 2^70
2020-04-24TJAOINF
no factor from 2^68 to 2^69
2020-01-19takahashiNF-PM1
B1=600000, B2=12000000, E=12
2018-02-25-Anonymous-NF
no factor from 2^67 to 2^68
2016-04-05Gordon SpenceNF
no factor from 2^66 to 2^67
2015-06-26VictordeHollanderNF
no factor from 2^65 to 2^66
2014-02-16lycornNF
no factor from 2^64 to 2^65
2014-02-09NesowaNF
no factor from 2^63 to 2^64
2011-11-29James HeinrichNF-PM1
B1=130000, B2=2827500, E=6