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

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MnStatusDetails
65539Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
33544899773691341.6old
134518484723635437967373212683.52014-05-09 20:16:58
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
403000000529 / 4588
Estimated T-Level: 35.6
TF below 2^113 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse5DAFF0F096E5F8422013
Verified2017-10-02kkmrkkblmbrbk5DAFF0F096E5F8422013
Verified2017-12-07ATH5DAFF0F096E5F84223399213
Verified2020-04-17Oliver Kruse20C1F62543DB44C923135653
Verified2024-02-03Wentao Huang20C1F62543DB44C92837853
History
DateUserTypeResult
2024-02-04masserNF-PP1
Start=118/53, B1=25000000, B2=1775000000
2024-02-04masserNF-PP1
Start=6/5, B1=25000000, B2=1775000000
2024-02-03Wentao HuangC-PRP
M65539/3354489977369/13451848472363543796737321 : 20C1F62543DB44C9
PRP: Verified
PRP without proof (small exponent)
2024-02-02masserNF-PP1
Start=2/7, B1=25000000, B2=1775000000
2022-10-22George WoltmanNF-PM1
B1=1000000000, B2=92454784812390
2020-04-17Oliver KruseC-PRP
M65539/3354489977369/13451848472363543796737321 : 20C1F62543DB44C9
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M65539/3354489977369/13451848472363543796737321 : 5DAFF0F096E5F842
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M65539/3354489977369/13451848472363543796737321 : 5DAFF0F096E5F842
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M65539/known_factors : 5DAFF0F096E5F842
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M65539/known_factors : 5DAFF0F096E5F842
PRP without proof (not generated)
2016-10-28kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2014-05-09TJAOIF-ECM
Factor: 13451848472363543796737321