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

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MnStatusDetails
2022893Factored
FactorDigitsBitsDate
445051485077216172231592375.22015-07-03 06:40:04
ECM
DigitsB1Curves
2550000280 / 280
30250000132 / 640
Estimated T-Level: 26.0 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Bill Ingles9848D66224CD40A40
Verified (Factored)1999-05-23Morten Ringvold9848D66224CD40A41548898
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-06Oliver KruseF6EBA8C9934D130D1013
Verified2017-11-14kkmrkkblmbrbkF6EBA8C9934D130D119438613
History
DateUserTypeResult
2022-03-09LordJuliusNF
no factor from 2^1 to 2^60
2017-11-14kkmrkkblmbrbkC-PRP
M2022893/44505148507721617223159 : F6EBA8C9934D130D
PRP: Verified
PRP without proof (not generated)
2017-10-06Oliver KruseC-PRP
M2022893/44505148507721617223159 : F6EBA8C9934D130D
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12
2015-07-03guruF-ECM
Factor: 44505148507721617223159 / (ECM curve 3, B1=50000, B2=5000000)
2015-04-10VictordeHollanderNF
no factor from 2^64 to 2^65
2015-04-10VictordeHollanderNF
no factor from 2^63 to 2^64
2013-10-21David CampeauNF-PM1
B1=580000, B2=15080000, E=12
2013-02-11dbaughNF
no factor from 2^62 to 2^63
2012-02-05Sebastian HornbostelNF
no factor from 2^61 to 2^62
2010-12-10JossNF-PM1
B1=202289
2009-01-02Sturle SundeNF
no factor from 2^60 to 2^61