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

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MnStatusDetails
2314931Factored
FactorDigitsBitsDate
440063996436546055075912375.22021-07-03 15:34:10
ECM
DigitsB1Curves
2550000151 / 280
Estimated T-Level: 22.7 ⓘ
TF below 2^70 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Fred008F1BDBA6F893720
Verified (Factored)1999-03-01Bruce Mitchell008F1BDBA6F893721693453
Verified (Factored)2018-05-04kkmrkkblmbrbk008F1BDBA6F89372287830
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-07-05kutens0EE6EF628FAB058A1191090553
History
DateUserTypeResult
2021-07-05curtiscCERT
PRP Certification
Proof certified good
2021-07-05kutensC-PRP
M2314931/44006399643654605507591 : 0EE6EF628FAB058A
PRP proof power = 7
PRP: Verified
Proof certified good
2021-07-03daveward2005F-ECM
Factor: 44006399643654605507591 / (ECM curve 1, B1=50000, B2=5000000, Sigma=5355532227948235)
2019-04-22TJAOINF
no factor from 2^67 to 2^68
2018-05-04kkmrkkblmbrbkC-LL
008F1BDBA6F89372
2018-01-11Sid & AndyNF-PM1
B1=6000000, B2=180000000, E=12
2017-06-03Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2015-10-23ramgeisNF
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
2013-12-06Jerry HallettNF
no factor from 2^62 to 2^63
2012-05-24Sebastian HornbostelNF
no factor from 2^61 to 2^62
2010-02-16BudNF-PM1
B1=500000, B2=10000000, E=12
2009-01-17Sturle SundeNF
no factor from 2^60 to 2^61