Marin Mersenne 2^P-1
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MnStatusDetails
2039651Factored
FactorDigitsBitsDate
2320969891553247361619854792787.62020-08-03 04:53:38
ECM
DigitsB1Curves
2550000280 / 280
30250000111 / 640
Estimated T-Level: 25.9 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Michael SchrufFFBBD71DA26537BC0
Verified (Factored)1999-03-26S05820FFBBD71DA26537BC1647527
Verified (Factored)2016-07-15Mark RoseFFBBD71DA26537BC4547
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2020-08-03M MillerD2945FB528252CA41111690153
Verified2020-08-06kutensD2945FB528252CA4145466153
History
DateUserTypeResult
2020-08-06kutensC-PRP
M2039651/232096989155324736161985479 : D2945FB528252CA4
PRP: Verified
PRP without proof (not generated)
2020-08-03M MillerC-PRP
M2039651/232096989155324736161985479 : D2945FB528252CA4
PRP: Verified
PRP without proof (not generated)
2020-08-03MarkSF-ECM
Factor: 232096989155324736161985479 / (ECM curve 2, B1=50000, B2=5000000, Sigma=50254725682046)
2019-06-21mikrNF-PM1
B1=4000000, B2=200000000, E=12
2019-03-21chuenkitNF
no factor from 2^67 to 2^68
2016-07-30Gordon SpenceNF
no factor from 2^66 to 2^67
2016-07-15Mark RoseC-LL
FFBBD71DA26537BC
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-11-01ramgeisNF
no factor from 2^65 to 2^66
2015-10-05Bruno VictalNF-PM1
B1=500000, B2=15000000, E=12
2015-04-13VictordeHollanderNF
no factor from 2^64 to 2^65
2015-04-13VictordeHollanderNF
no factor from 2^63 to 2^64
2014-10-17JossNF-PM1
B1=162936
2014-07-18JossNF-PM1
B1=131468
2013-08-30ramgeisNF
no factor from 2^62 to 2^63
2012-02-11Sebastian HornbostelNF
no factor from 2^61 to 2^62
2009-02-10markrNF-PM1
B1=100000, B2=3000000, E=6
2009-01-02Sturle SundeNF
no factor from 2^60 to 2^61