Marin Mersenne 2^P-1
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MnStatusDetails
283051Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
2830511721.4old
579199245295691445.72008-07-21 09:15:51
394936752088288391755.12014-09-12 13:41:08
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000213 / 1566
Estimated T-Level: 30.7
TF below 2^97 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver Kruse35D76EE78EE9C3863013
Verified2017-10-12Oliver Kruse35D76EE78EE9C386312062813
Verified2017-11-06kkmrkkblmbrbk35D76EE78EE9C386319345513
Verified2020-04-17Oliver Kruse5E50595FEBC052B938445753
Verified2024-08-10kkmrkkblmbrbk5E50595FEBC052B9323557653
History
DateUserTypeResult
2024-11-11yuriy_5-1NF-PM1
B1=26040692, B2=6348019808130
2024-08-10Luke DurantCERT
PRP Certification
Proof certified good
2024-08-10kkmrkkblmbrbkC-PRP
M283051/2830511/57919924529569/39493675208828839 : 5E50595FEBC052B9
PRP proof power = 5
PRP: Verified
Proof certified good
2023-02-15USAFSSNF-PM1
B1=3500000, B2=18264117300
2022-02-06Lisander ViaeneNF-PM1
B1=50000
2020-04-17Oliver KruseC-PRP
M283051/2830511/57919924529569/39493675208828839 : 5E50595FEBC052B9
PRP: Verified
PRP without proof (small exponent)
2017-11-06kkmrkkblmbrbkC-PRP
M283051/2830511/57919924529569/39493675208828839 : 35D76EE78EE9C386
PRP: Verified
PRP without proof (small exponent)
2017-10-12Oliver KruseC-PRP
M283051/2830511/57919924529569/39493675208828839 : 35D76EE78EE9C386
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M283051/known_factors : 35D76EE78EE9C386
PRP without proof (not generated)
2014-09-12TJAOIF-ECM
Factor: 39493675208828839 / (ECM curve 1, B1=50000, B2=5000000)
2008-07-21J FeitsmaF
Factor: 57919924529569