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

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MnStatusDetails
3651793Factored
FactorDigitsBitsDate
17146048091985872535790312580.52021-11-19 00:37:29
ECM
DigitsB1Curves
255000034 / 280
Estimated T-Level: 20.6
TF below 2^63 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Craig Smith6AEFC0C69586F4F70
Verified (Factored)1999-08-22Charles Dorian6AEFC0C69586F4F7420548
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-11-20Aaron Haviland00D1B46BABA71FFB1271884953
History
DateUserTypeResult
2022-05-24JossNF-PM1
B1=100000, B2=130364850
2022-03-22JossNF-PM1
B1=100000
2022-03-04JossNF-PM1
B1=90000
2021-11-20M. Farrokhi D. G.CERT
PRP Certification
Proof certified good
2021-11-20Aaron HavilandC-PRP
M3651793/1714604809198587253579031 : 00D1B46BABA71FFB
PRP proof power = 7
PRP: Verified
Proof certified good
2021-11-19daveward2005F-ECM
Factor: 1714604809198587253579031 / (ECM curve 5, B1=50000, B2=5000000, Sigma=5447936486676381)
2020-11-18axnNF
no factor from 2^69 to 2^70
2020-11-08axnNF
no factor from 2^68 to 2^69
2020-09-07axnNF-PM1
B1=30000000, B2=600000000, E=12
2019-02-11TJAOINF
no factor from 2^67 to 2^68
2017-03-07JossNF-PM1
B1=241228, B2=2412280, E=6
2017-03-06Squeeky_SquirrelNF-PM1
B1=230000, B2=6785000, E=12
2017-01-29JossNF-PM1
B1=167520
2016-12-29JossNF-PM1
B1=129600
2016-12-28Gordon SpenceNF
no factor from 2^66 to 2^67
2016-06-12JossNF-PM1
B1=108000, B2=3285000, E=6
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2015-10-20ramgeisNF
no factor from 2^65 to 2^66
2015-01-22VictordeHollanderNF
no factor from 2^64 to 2^65
2015-01-22VictordeHollanderNF
no factor from 2^63 to 2^64
2012-06-05GrunwalderGIMPNF
no factor from 2^1 to 2^63
2012-01-29Squeeky_SquirrelNF-PM1
B1=90000, B2=1642500, E=6
2011-05-15markrNF
no factor from 2^61 to 2^62
2009-07-07Carsten KossendeyNF-PM1
B1=20000, B2=250000
2009-03-10S485122NF
no factor from 2^60 to 2^61