Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
5041703Factored
FactorDigitsBitsDate
394233020704690131148092375.12021-10-24 07:57:39
ECM
DigitsB1Curves
255000045 / 280
Estimated T-Level: 20.8 ⓘ
TF below 2^64 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David A McGough4E6B673CC1C682E30
Verified (Factored)Paul Victor Novarese4E6B673CC1C682E30
Verified (Factored)2015-11-13MadPoo4E6B673CC1C682E33304926
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-10-24ATHFE7B26323AA788A31149910053
History
DateUserTypeResult
2021-10-24curtiscCERT
PRP Certification
Proof certified good
2021-10-24ATHC-PRP
M5041703/39423302070469013114809 : FE7B26323AA788A3
PRP proof power = 7
PRP: Verified
Proof certified good
2021-10-24ATHF-PP1
Start=2/7, B1=2500000, B2=92500000, Factor: 39423302070469013114809
2021-04-02-Anonymous-NF
no factor from 2^71 to 2^72
2021-03-27-Anonymous-NF
no factor from 2^70 to 2^71
2021-03-27-Anonymous-NF
no factor from 2^69 to 2^70
2020-12-28TJAOINF
no factor from 2^68 to 2^69
2018-06-11ramgeisNF
no factor from 2^67 to 2^68
2017-03-03Squeeky_SquirrelNF-PM1
B1=300000, B2=9375000, E=12
2016-05-18Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^61 to 2^63
2015-11-13MadPooC-LL
4E6B673CC1C682E3
2015-07-30snme2pm1NF
no factor from 2^65 to 2^66
2014-12-16VictordeHollanderNF
no factor from 2^64 to 2^65
2014-12-16VictordeHollanderNF
no factor from 2^63 to 2^64
2014-11-22JossNF-PM1
B1=67731
2009-07-23USAFSSNF-PM1
B1=55000, B2=907500, E=6