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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MnStatusDetails
2360609Factored
FactorDigitsBitsDate
2885563681101289318477512477.92020-07-12 06:32:10
ECM
DigitsB1Curves
255000067 / 280
Estimated T-Level: 21.2
TF below 2^65 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Hari SeldonA250D086C21B39DE0
Verified (Factored)1999-04-02Glenn JensenA250D086C21B39DE1713102
Verified (Factored)2018-05-11kkmrkkblmbrbkA250D086C21B39DE1166846
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2020-07-12M MillerBCE0CA643BF52E981157287253
Verified2020-07-13pewBCE0CA643BF52E981224211053
History
DateUserTypeResult
2020-07-13pewC-PRP
M2360609/288556368110128931847751 : BCE0CA643BF52E98
PRP: Verified
PRP without proof (not generated)
2020-07-12M MillerC-PRP
M2360609/288556368110128931847751 : BCE0CA643BF52E98
PRP: Verified
PRP without proof (not generated)
2020-07-12mnd9F-ECM
Factor: 288556368110128931847751 / (ECM curve 1, B1=50000, B2=5000000, Sigma=3489379662099681)
2019-04-22TJAOINF
no factor from 2^67 to 2^68
2018-05-11kkmrkkblmbrbkC-LL
A250D086C21B39DE
2017-06-13Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-10-29ramgeisNF
no factor from 2^65 to 2^66
2015-08-21mikrNF-PM1
B1=3000000, B2=100000000, E=12
2015-03-09VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-09VictordeHollanderNF
no factor from 2^63 to 2^64
2014-10-22JossNF-PM1
B1=144380
2014-08-07JossNF-PM1
B1=117190
2013-12-04Jerry HallettNF
no factor from 2^62 to 2^63
2012-05-30Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-01-22Oscar ÖstlinNF-PM1
B1=90000, B2=1822500, E=6
2010-12-23Oscar ÖstlinNF-PM1
B1=75011
2010-11-03JossNF-PM1
B1=20000
2009-01-10Sturle SundeNF
no factor from 2^60 to 2^61