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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Exponent Range:










MnStatusDetails
4054709Factored
FactorDigitsBitsDate
4787184077487625818594341592788.62021-06-23 07:45:54
ECM
DigitsB1Curves
255000057 / 280
Estimated T-Level: 21.0
TF below 2^65 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-05-23Dongsheng LiuC57C4A87470488540
Verified (Factored)1999-10-15Walt McGuganC57C4A87470488543261870
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-06-24kutensACA2E618C080E96019787953
History
DateUserTypeResult
2021-06-24arnaudCERT
PRP Certification
Proof certified good
2021-06-24kutensC-PRP
M4054709/478718407748762581859434159 : ACA2E618C080E960
PRP proof power = 7
PRP: Verified
Proof certified good
2021-06-23ATHF-PP1
Start=2/7, B1=2500000, B2=177500000, Factor: 478718407748762581859434159
2020-10-30mikrNF
no factor from 2^69 to 2^70
2020-10-30mikrNF
no factor from 2^68 to 2^69
2018-12-14Ismo LaitelaNF-PM1
B1=2237739, B2=62656681, E=12
2018-11-03YxinityNF
no factor from 2^67 to 2^68
2016-09-19kkmrkkblmbrbkNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-05-21snme2pm1NF
no factor from 2^65 to 2^66
2013-10-07David CampeauNF
no factor from 2^64 to 2^65
2013-08-18JayderNF
no factor from 2^63 to 2^64
2013-06-10Squeeky_SquirrelNF-PM1
B1=120000, B2=2310000, E=6
2011-07-22USAFSSNF-PM1
B1=40000, B2=580000
2011-07-01GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-10-13Grant McCrackenNF
no factor from 2^61 to 2^62
2009-07-17Carsten KossendeyNF-PM1
B1=20000, B2=300000