Marin Mersenne 2^P-1
Username
Password
Forgot password?
Black
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
3349033Factored
FactorDigitsBitsDate
1223099372884682504318541532786.72020-09-11 00:43:42
5083458708188020654428850638175618335115.32020-09-11 00:43:42
ECM
DigitsB1Curves
255000015 / 280
Estimated T-Level: 20.3
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-03-23Dongsheng Liu0F337E3BAC3DEBE20
Verified (Factored)1999-10-15Roger Yerdon0F337E3BAC3DEBE23296233
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2020-09-13fre_gamesFE3BA33988607AE7270552553
Verified2020-09-14kutensFE3BA33988607AE7273555753
P-1 factors
DateFactorB1B2
2020-09-1162175751580699463009146323641962678677982789478181610619779994000000150000000
History
DateUserTypeResult
2022-07-17JossNF-PM1
B1=3349033, B2=3370348800
2022-02-16JossNF-PM1
B1=1000000, B2=119912100
2020-09-14kutensC-PRP
M3349033/122309937288468250431854153/50834587081880206544288506381756183 : FE3BA33988607AE7
PRP: Verified
PRP without proof (not generated)
2020-09-13fre_gamesC-PRP
M3349033/122309937288468250431854153/50834587081880206544288506381756183 : FE3BA33988607AE7
PRP: Verified
PRP without proof (not generated)
2020-09-11mikrF-PM1
Factor: 6217575158069946300914632364196267867798278947818161061977999 / (P-1, B1=4000000, B2=150000000, E=12)
2018-10-29TJAOINF
no factor from 2^67 to 2^68
2017-03-03Gordon SpenceNF
no factor from 2^66 to 2^67
2016-03-03ramgeisNF
no factor from 2^65 to 2^66
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-02-11VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-11VictordeHollanderNF
no factor from 2^63 to 2^64
2012-12-16Squeeky_SquirrelNF-PM1
B1=230000, B2=6670000, E=12
2012-11-15GrunwalderGIMPNF
no factor from 2^1 to 2^63
2011-10-10USAFSSNF-PM1
B1=55000, B2=907500, E=6
2011-08-22markrNF
no factor from 2^61 to 2^62
2009-07-05Carsten KossendeyNF-PM1
B1=15000, B2=206250
2009-03-28S485122NF
no factor from 2^60 to 2^61