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

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Exponent Range:










MnStatusDetails
836683Factored
FactorDigitsBitsDate
279056391301526815608340880099931101.12021-07-30 12:26:57
ECM
DigitsB1Curves
2550000280 / 280
30250000131 / 640
Estimated T-Level: 26.0
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski1C540
Verified (Factored)Paul Victor Novarese06624305578A9C540
Verified (Factored)Edo de Roo Jankovic06624305578A9C540
Verified (Factored)2015-04-11MadPoo06624305578A9C54793823
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-07-30gLaussF67B22E955F1A9C3148829053
Verified2021-08-31ATHF67B22E955F1A9C3157098153
History
DateUserTypeResult
2021-08-31Khurshid SuyunovCERT
PRP Certification
Proof certified good
2021-08-31ATHC-PRP
M836683/2790563913015268156083408800999 : F67B22E955F1A9C3
PRP proof power = 6
PRP: Verified
Proof certified good
2021-07-30gLaussC-PRP
M836683/2790563913015268156083408800999 : F67B22E955F1A9C3
PRP proof power = 6
PRP: Verified
PRP proof never uploaded
2021-07-30gLaussF-PP1
Start=2/7, B1=7500000, B2=585000000, Factor: 2790563913015268156083408800999
2017-12-12Smok_bmv NF
no factor from 2^67 to 2^68
2017-12-12Smok_bmv NF
no factor from 2^66 to 2^67
2017-12-12Smok_bmv NF
no factor from 2^65 to 2^66
2016-02-18lycornNF
no factor from 2^64 to 2^65
2015-10-03Gordon SpenceNF
no factor from 2^63 to 2^64
2015-10-03Gordon SpenceNF
no factor from 2^62 to 2^63
2015-04-11MadPooC-LL
06624305578A9C54
2015-02-20TJAOINF
no factor from 2^61 to 2^62
2012-07-17markrNF-PM1
B1=10000000, B2=200000000, E=12
2012-01-22JossNF-PM1
B1=837273
2010-05-26Architects CubedNF
no factor from 2^60 to 2^61
2009-08-29Carsten KossendeyNF-PM1
B1=836683
2008-10-15Sturle SundeNF
no factor from 2^59 to 2^60
2008-10-15Sturle SundeNF
no factor from 2^58 to 2^59