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

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MnStatusDetails
2340551Factored
FactorDigitsBitsDate
450705216285835044737592375.32016-05-06 05:40:10
ECM
DigitsB1Curves
255000075 / 280
Estimated T-Level: 21.3
TF below 2^66 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Eric Thomas838D013468FA22E50
Verified (Factored)Cornelius Caesar838D013468FA22E50
Verified (Factored)2015-11-15MadPoo838D013468FA22E51914513
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-12Oliver Kruse096A1089C62436921013
Verified2017-11-24kkmrkkblmbrbk096A1089C6243692147968713
History
DateUserTypeResult
2021-04-18ViliamFNF-PM1
B1=5000000, B2=505000000
2018-03-18alpertronNF-PM1
B1=500000, B2=15000000, E=12
2017-11-24kkmrkkblmbrbkC-PRP
M2340551/45070521628583504473759 : 096A1089C6243692
PRP: Verified
PRP without proof (not generated)
2017-10-12Oliver KruseC-PRP
M2340551/45070521628583504473759 : 096A1089C6243692
PRP: Verified
PRP without proof (not generated)
2016-05-06f0rteOCF-ECM
Factor: 45070521628583504473759 / (ECM curve 2, B1=50000, B2=5000000)
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2015-11-15MadPooC-LL
838D013468FA22E5
2015-10-25ramgeisNF
no factor from 2^65 to 2^66
2015-03-06VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-06VictordeHollanderNF
no factor from 2^63 to 2^64
2013-12-04Luigi MorelliNF
no factor from 2^62 to 2^63
2012-05-28Sebastian HornbostelNF
no factor from 2^61 to 2^62
2010-03-01BudNF-PM1
B1=500000, B2=10000000, E=12
2009-01-11Sturle SundeNF
no factor from 2^60 to 2^61