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

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MnStatusDetails
2310083Factored
FactorDigitsBitsDate
712152090723659932492065.92015-06-15 17:24:34
ECM
DigitsB1Curves
255000079 / 280
Estimated T-Level: 21.4 ⓘ
TF below 2^66 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Edesio Costa e Silva98F916661FA9B4B90
Verified (Factored)1999-03-01Goede Schueler/Christoph Steinbeck98F916661FA9B4B9885150
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-11Oliver Kruse42AEB950689BDC7F1013
Verified2017-11-23kkmrkkblmbrbk42AEB950689BDC7F1131372013
History
DateUserTypeResult
2021-05-03ViliamFNF-PM1
B1=5000000, B2=500000000
2018-02-23alpertronNF-PM1
B1=500000, B2=15000000, E=12
2017-11-23kkmrkkblmbrbkC-PRP
M2310083/71215209072365993249 : 42AEB950689BDC7F
PRP: Verified
PRP without proof (not generated)
2017-10-11Oliver KruseC-PRP
M2310083/71215209072365993249 : 42AEB950689BDC7F
PRP: Verified
PRP without proof (not generated)
2015-06-15guruF-ECM
Factor: 71215209072365993249 / (ECM curve 3, B1=50000, B2=5000000)
2015-03-03VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-03VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-23dbaughNF
no factor from 2^62 to 2^63
2012-05-23Sebastian HornbostelNF
no factor from 2^61 to 2^62
2010-02-15BudNF-PM1
B1=500000, B2=10000000, E=12
2009-01-14Sturle SundeNF
no factor from 2^60 to 2^61