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
1595813Factored
FactorDigitsBitsDate
86173903826.4old
98940407826.62008-07-15 10:05:30
2621785529806391547.92014-03-21 11:39:48
2143094372736894630732167.52017-12-07 18:08:33
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.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-10-02Oliver Kruse5D26FCF2DBDE6D443013
Verified (Factored)2017-10-31kkmrkkblmbrbk5D26FCF2DBDE6D44383377813
Verified2017-12-08Yaroslav BerezhkoAFF143908B60B4AE4104503553
Verified2017-12-08Yaroslav BerezhkoAFF143908B60B4AE438732153
Verified2017-12-10Chun sung sooAFF143908B60B4AE426852553
History
DateUserTypeResult
2017-12-10Chun sung sooC-PRP
M1595813/86173903/98940407/262178552980639/214309437273689463073 : AFF143908B60B4AE
PRP: Verified
PRP without proof (not generated)
2017-12-08Yaroslav BerezhkoC-PRP
M1595813/86173903/98940407/262178552980639/214309437273689463073 : AFF143908B60B4AE
PRP: Verified
PRP without proof (not generated)
2017-12-08Yaroslav BerezhkoC-PRP
M1595813/86173903/98940407/262178552980639/214309437273689463073 : AFF143908B60B4AE
PRP: Verified
PRP without proof (not generated)
2017-12-07ATHF-ECM
Factor: 214309437273689463073 / (ECM curve 2, B1=50000, B2=5000000)
2017-10-31kkmrkkblmbrbkC-PRP
M1595813/86173903/98940407/262178552980639 : 5D26FCF2DBDE6D44
PRP: Verified
PRP without proof (not generated)
2017-10-02Oliver KruseC-PRP
M1595813/86173903/98940407/262178552980639 : 5D26FCF2DBDE6D44
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12
2014-03-21TJAOIF
Factor: 262178552980639
2008-07-15J FeitsmaF
Factor: 98940407