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

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MnStatusDetails
516611Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
1033223720.0old
292326991435356311754.72014-11-01 13:24:34
329233385675997512172064.82015-06-05 09:25:13
ECM
DigitsB1Curves
2550000280 / 280
30250000200 / 640
Estimated T-Level: 26.6
TF below 2^83 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-28Oliver Kruse0083C837139A31603013
Verified2017-10-13Oliver Kruse0083C837139A3160337045313
Verified2017-12-17ATH0083C837139A3160330162013
Verified2020-04-19Oliver KruseF26001BBBA7669A1310291853
Verified2024-12-11kkmrkkblmbrbkF26001BBBA7669A1329731153
P-1 factors
DateFactorB1B2
2014-11-0129232699143535631150000050000000
History
DateUserTypeResult
2024-12-11PerigCERT
PRP Certification
Proof certified good
2024-12-11kkmrkkblmbrbkC-PRP
M516611/1033223/29232699143535631/32923338567599751217 : F26001BBBA7669A1
PRP proof power = 6
PRP: Verified
Proof certified good
2022-12-18USAFSSNF-PM1
B1=2000000, B2=6733146420
2020-04-19Oliver KruseC-PRP
M516611/1033223/29232699143535631/32923338567599751217 : F26001BBBA7669A1
PRP: Verified
PRP without proof (small exponent)
2017-12-17ATHC-PRP
M516611/1033223/29232699143535631/32923338567599751217 : 0083C837139A3160
PRP: Verified
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M516611/1033223/29232699143535631/32923338567599751217 : 0083C837139A3160
PRP: Verified
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M516611/1033223/29232699143535631/32923338567599751217 : 0083C837139A3160
PRP: Verified
PRP without proof (not generated)
2017-09-27Oliver KruseC-PRP
M516611/1033223/29232699143535631/32923338567599751217 : 0083C837139A3160
PRP without proof (not generated)
2015-06-05TJAOIF-ECM
Factor: 32923338567599751217 / (ECM curve 5, B1=50000, B2=5000000)
2014-11-01alpertronF-PM1
Factor: 29232699143535631 / (P-1, B1=1500000, B2=50000000, E=12)