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

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MnStatusDetails
2016919Factored
FactorDigitsBitsDate
1109034431059584602392166.62015-07-01 04:38:56
ECM
DigitsB1Curves
2550000280 / 280
30250000115 / 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)Wart1580AAFA452F63930
Verified (Factored)1999-01-17Gary Untermeyer1580AAFA452F6393731357
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-05Oliver Kruse6E9119AA98C4AAE71013
Verified2017-11-13kkmrkkblmbrbk6E9119AA98C4AAE71137672613
History
DateUserTypeResult
2022-03-09LordJuliusNF
no factor from 2^1 to 2^60
2017-11-13kkmrkkblmbrbkC-PRP
M2016919/110903443105958460239 : 6E9119AA98C4AAE7
PRP: Verified
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M2016919/110903443105958460239 : 6E9119AA98C4AAE7
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12
2015-07-01guruF-ECM
Factor: 110903443105958460239 / (ECM curve 2, B1=50000, B2=5000000)
2015-03-15VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-15VictordeHollanderNF
no factor from 2^63 to 2^64
2013-10-16David CampeauNF-PM1
B1=640000, B2=14080000, E=12
2013-06-06David CampeauNF
no factor from 2^62 to 2^63
2012-02-03Sebastian HornbostelNF
no factor from 2^61 to 2^62
2010-12-07JossNF-PM1
B1=201691
2009-01-02Sturle SundeNF
no factor from 2^60 to 2^61