Marin Mersenne 2^P-1
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Finding World Record Primes Since 1996

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MnStatusDetails
2461093Factored
FactorDigitsBitsDate
451368897350227755987537868072995.22021-07-17 22:19:32
ECM
DigitsB1Curves
2550000134 / 280
Estimated T-Level: 22.4 ⓘ
TF below 2^69 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Mike Barnett7624B5CD87B46A350
Verified (Factored)1999-06-26Goede Schueler/Christoph Steinbeck7624B5CD87B46A35912896
Verified (Factored)2018-05-27kkmrkkblmbrbk7624B5CD87B46A351997766
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-07-18/r/countingFE805AA309B433691160764153
History
DateUserTypeResult
2021-07-18Massimo Cappelli (ik5pwa)CERT
PRP Certification
Proof certified good
2021-07-18/r/countingC-PRP
M2461093/45136889735022775598753786807 : FE805AA309B43369
PRP proof power = 7
PRP: Verified
Proof certified good
2021-07-17daveward2005F-ECM
Factor: 45136889735022775598753786807 / (ECM curve 2, B1=50000, B2=5000000, Sigma=1756913152446599)
2021-07-12TJAOINF
no factor from 2^68 to 2^69
2019-07-01TJAOINF
no factor from 2^67 to 2^68
2018-05-27kkmrkkblmbrbkC-LL
7624B5CD87B46A35
2017-07-15Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-10-26ramgeisNF
no factor from 2^65 to 2^66
2015-03-03VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-03VictordeHollanderNF
no factor from 2^63 to 2^64
2014-10-13mikrNF-PM1
B1=2382500, B2=85770100, E=12
2014-09-02JossNF-PM1
B1=121080
2013-12-04Jerry HallettNF
no factor from 2^62 to 2^63
2012-06-07Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-01-20Oscar ÖstlinNF-PM1
B1=95000, B2=1947500, E=6
2010-11-19JossNF-PM1
B1=20000
2009-01-13Sturle SundeNF
no factor from 2^60 to 2^61