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

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MnStatusDetails
361241Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
20229497824.3old
16048051951991340.52008-07-21 09:17:44
ECM
DigitsB1Curves
2550000280 / 280
30250000378 / 640
Estimated T-Level: 28.0
TF below 2^88 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-23Oliver KruseA872B36F7A68E1012013
Verified2017-11-02kkmrkkblmbrbkA872B36F7A68E101229838513
Verified2020-04-18Oliver Kruse5AB1D2A4980C9477231881053
Verified2024-09-20kkmrkkblmbrbk5AB1D2A4980C947728947653
History
DateUserTypeResult
2024-09-21Chun sung sooCERT
PRP Certification
Proof certified good
2024-09-20kkmrkkblmbrbkC-PRP
M361241/20229497/1604805195199 : 5AB1D2A4980C9477
PRP proof power = 5
PRP: Verified
Proof certified good
2024-05-24yuriy_5-1NF-PM1
B1=2000004, B2=128889630870
2024-02-15Denial140NF-PM1
B1=1000000, B2=5169304140
2022-02-07Lisander ViaeneNF-PM1
B1=50000
2020-04-18Oliver KruseC-PRP
M361241/20229497/1604805195199 : 5AB1D2A4980C9477
PRP: Verified
PRP without proof (small exponent)
2017-11-02kkmrkkblmbrbkC-PRP
M361241/20229497/1604805195199 : A872B36F7A68E101
PRP: Verified
PRP without proof (small exponent)
2017-09-23Oliver KruseC-PRP
M361241/20229497/1604805195199 : A872B36F7A68E101
PRP: Verified
PRP without proof (not generated)
2008-07-21J FeitsmaF
Factor: 1604805195199