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

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MnStatusDetails
2810341Factored
FactorDigitsBitsDate
2642723117997113123272167.82018-12-19 18:06:23
ECM
DigitsB1Curves
255000028 / 280
Estimated T-Level: 20.5 ⓘ
TF below 2^63 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Gregg Morris8B9112C02153A27F0
Verified (Factored)1999-08-22MFS Software8B9112C02153A27F793745
Verified (Factored)2018-09-03kkmrkkblmbrbk8B9112C02153A27F285511
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2018-12-21EthanD719E0B9ECE34F99B1165623153
Verified2018-12-23arnaud719E0B9ECE34F99B186407053
History
DateUserTypeResult
2023-04-17Kevin_9611NF-PM1
B1=480000, B2=616387590
2018-12-23arnaudC-PRP
M2810341/264272311799711312327 : 719E0B9ECE34F99B
PRP: Verified
PRP without proof (not generated)
2018-12-21EthanDC-PRP
M2810341/264272311799711312327 : 719E0B9ECE34F99B
PRP: Verified
PRP without proof (not generated)
2018-12-19Chang Chia-TcheF-ECM
Factor: 264272311799711312327 / (ECM curve 1, B1=50000, B2=5000000)
2018-09-03kkmrkkblmbrbkC-LL
8B9112C02153A27F
2017-10-24Gordon SpenceNF
no factor from 2^66 to 2^67
2017-07-30JossNF-PM1
B1=400000, B2=4000000, E=6
2016-05-10JossNF-PM1
B1=200000, B2=3600000, E=6
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2016-02-11ramgeisNF
no factor from 2^65 to 2^66
2015-04-21VictordeHollanderNF
no factor from 2^64 to 2^65
2015-04-21VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-14dbaughNF
no factor from 2^62 to 2^63
2012-02-25Grant McCrackenNF
no factor from 2^61 to 2^62
2010-11-18markrNF-PM1
B1=100000, B2=2100000, E=6
2010-11-12JossNF-PM1
B1=15000
2009-02-13Sturle SundeNF
no factor from 2^60 to 2^61