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
841933Factored
FactorDigitsBitsDate
38401383910832246001730601292891.62023-03-23 03:28:55
ECM
DigitsB1Curves
2550000280 / 280
30250000160 / 640
Estimated T-Level: 26.3
TF below 2^82 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski23840
Verified (Factored)chris lueders2ABBA876AE3A23840
Verified (Factored)Paul Victor Novarese2ABBA876AE3A23840
Verified (Factored)2015-04-11MadPoo2ABBA876AE3A23842073
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2023-03-23masserFFBB400D0A1BCFAC15978253
P-1 factors
DateFactorB1B2
2023-03-233840138391083224600173060129100000013367374020
History
DateUserTypeResult
2023-04-20masserNF-PP1
Start=6/5, B1=6000000, B2=276000000
2023-03-23JossF-PM1
Factor: 3840138391083224600173060129 / (P-1, B1=1000000, B2=13367374020)
2023-03-23curtiscCERT
PRP Certification
Proof certified good
2023-03-23masserC-PRP
M841933/3840138391083224600173060129 : FFBB400D0A1BCFAC
PRP proof power = 6
PRP: Verified
Proof certified good
2023-03-23masserF-PP1
Start=89/59, B1=6000000, B2=276000000, Factor: 3840138391083224600173060129
2023-03-23masserNF-PP1
Start=2/7, B1=6000000, B2=288000000
2022-12-20JossNF-PM1
B1=1000000, B2=4637653020
2018-01-22Smok_bmv NF
no factor from 2^67 to 2^68
2018-01-22Smok_bmv NF
no factor from 2^66 to 2^67
2018-01-22Smok_bmv NF
no factor from 2^65 to 2^66
2016-02-16lycornNF
no factor from 2^64 to 2^65
2015-10-02Gordon SpenceNF
no factor from 2^63 to 2^64
2015-10-02Gordon SpenceNF
no factor from 2^62 to 2^63
2015-04-11MadPooC-LL
2ABBA876AE3A2384
2015-02-20TJAOINF
no factor from 2^61 to 2^62
2012-07-30markrNF-PM1
B1=10000000, B2=200000000, E=12
2010-05-24Architects CubedNF
no factor from 2^60 to 2^61
2009-08-26Carsten KossendeyNF-PM1
B1=841933
2008-10-11Sturle SundeNF
no factor from 2^59 to 2^60
2008-10-11Sturle SundeNF
no factor from 2^58 to 2^59