Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
1767937Factored
FactorDigitsBitsDate
193089349423413800898232374.02016-05-07 15:07:07
ECM
DigitsB1Curves
2550000280 / 280
30250000107 / 640
Estimated T-Level: 25.8 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Krueger7D709BA0DA317BB90
Verified (Factored)1998-12-06Scott Wayne7D709BA0DA317BB91425027
Verified (Factored)2015-07-18MadPoo7D709BA0DA317BB9947379
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-03Oliver Kruse11A2EE662A9F8B751013
Verified2017-11-04kkmrkkblmbrbk11A2EE662A9F8B75177698513
History
DateUserTypeResult
2017-11-04kkmrkkblmbrbkC-PRP
M1767937/19308934942341380089823 : 11A2EE662A9F8B75
PRP: Verified
PRP without proof (not generated)
2017-10-03Oliver KruseC-PRP
M1767937/19308934942341380089823 : 11A2EE662A9F8B75
PRP: Verified
PRP without proof (not generated)
2016-05-07bamF-ECM
Factor: 19308934942341380089823 / (ECM curve 1, B1=50000, B2=5000000)
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2016-02-23Mark RoseNF
no factor from 2^61 to 2^62
2015-09-08ramgeisNF
no factor from 2^65 to 2^66
2015-07-18MadPooC-LL
7D709BA0DA317BB9
2015-05-09mikrNF-PM1
B1=2475400, B2=86660000, E=12
2015-04-30snme2pm1NF
no factor from 2^64 to 2^65
2015-04-30snme2pm1NF
no factor from 2^63 to 2^64
2014-09-18JossNF-PM1
B1=172610
2014-05-09JossNF-PM1
B1=136305
2014-04-08JossNF-PM1
B1=100000
2011-02-07Carsten KossendeyNF-PM1
B1=95000, B2=1615000, E=6
2010-12-13GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-04-20Architects CubedNF
no factor from 2^60 to 2^61