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

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Exponent Range:










MnStatusDetails
4086041Factored
FactorDigitsBitsDate
17047548821695526352271192580.52021-08-16 06:35:05
ECM
DigitsB1Curves
255000057 / 280
Estimated T-Level: 21.0 ⓘ
TF below 2^65 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-08-09Jordan Share454C583E970AF6740
Verified (Factored)2000-04-27Daniel Steiner454C583E970AF6741094777
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-08-16ATHAAA57F06A5AE6F671321044453
Verified2021-08-16/r/countingAAA57F06A5AE6F671370616853
History
DateUserTypeResult
2021-08-16curtiscCERT
PRP Certification
Proof certified good
2021-08-16/r/countingC-PRP
M4086041/1704754882169552635227119 : AAA57F06A5AE6F67
PRP proof power = 7
PRP: Verified
Proof certified good
2021-08-16curtiscCERT
PRP Certification
Proof certified good
2021-08-16ATHC-PRP
M4086041/1704754882169552635227119 : AAA57F06A5AE6F67
PRP proof power = 7
PRP: Verified
Proof certified good
2021-08-16ATHF-PP1
Start=2/7, B1=2500000, B2=182500000, Factor: 1704754882169552635227119
2021-07-22TJAOINF
no factor from 2^68 to 2^69
2019-03-20Ismo LaitelaNF-PM1
B1=2237739, B2=62656681, E=12
2018-11-09YxinityNF
no factor from 2^67 to 2^68
2016-10-11kkmrkkblmbrbkNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-05-23snme2pm1NF
no factor from 2^65 to 2^66
2013-11-05David CampeauNF
no factor from 2^64 to 2^65
2013-08-28JayderNF
no factor from 2^63 to 2^64
2013-07-21Squeeky_SquirrelNF-PM1
B1=120000, B2=2340000, E=6
2011-07-29USAFSSNF-PM1
B1=40000, B2=580000
2011-07-01GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-11-08Grant McCrackenNF
no factor from 2^61 to 2^62
2009-07-21Carsten KossendeyNF-PM1
B1=20000, B2=300000