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

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Exponent Range:










MnStatusDetails
864011Factored
FactorDigitsBitsDate
1425554973284767484615912576578095118355341133.42022-12-07 07:56:24
ECM
DigitsB1Curves
2550000280 / 280
30250000103 / 640
Estimated T-Level: 25.8 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski2120
Verified (Factored)Mischa Kenn1C3FA94BBC2482120
Verified (Factored)2002-01-08Marc Getty / Phil Fizur1C3FA94BBC248212127797
Verified (Factored)2015-04-11MadPoo1C3FA94BBC248212274338
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-12-08LordJulius189B267B9910B375115960453
P-1 factors
DateFactorB1B2
2022-12-0714255549732847674846159125765780951183553150000001101081888270
History
DateUserTypeResult
2022-12-08Deckard LainCERT
PRP Certification
Proof certified good
2022-12-08LordJuliusC-PRP
M864011/14255549732847674846159125765780951183553 : 189B267B9910B375
PRP proof power = 6
PRP: Verified
Proof certified good
2022-12-07lycornF-PM1
Factor: 14255549732847674846159125765780951183553 / (P-1, B1=15000000, B2=1101081888270)
2022-11-25JossNF-PM1
B1=2031000, B2=4637653020
2022-03-07LordJuliusNF
no factor from 2^58 to 2^59
2018-05-28Smok_bmv NF
no factor from 2^67 to 2^68
2018-05-28Smok_bmv NF
no factor from 2^66 to 2^67
2018-05-28Smok_bmv NF
no factor from 2^65 to 2^66
2018-05-18BloodERazorNF
no factor from 2^65 to 2^66
2016-02-15lycornNF
no factor from 2^64 to 2^65
2015-12-02Sid & AndyNF-PM1
B1=8640110, B2=259203300, E=12
2015-10-06Gordon SpenceNF
no factor from 2^63 to 2^64
2015-10-06Gordon SpenceNF
no factor from 2^62 to 2^63
2015-04-11MadPooC-LL
1C3FA94BBC248212
2015-02-06TJAOINF
no factor from 2^61 to 2^62
2013-11-08David CampeauNF-PM1
B1=2030000, B2=73080000, E=12
2012-10-19JossNF-PM1
B1=1954038
2012-08-29JossNF-PM1
B1=1728022
2012-03-29JossNF-PM1
B1=1204648
2010-05-20Architects CubedNF
no factor from 2^60 to 2^61
2009-08-30Carsten KossendeyNF-PM1
B1=864011