Marin Mersenne 2^P-1
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MnStatusDetails
248033Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
1610904885771237.2old
65370322575986221211962.52009-01-14 12:38:46
734932485780897121683532376.02015-01-16 11:43:53
ECM
DigitsB1Curves
2550000280 / 280
30250000624 / 640
Estimated T-Level: 29.9
TF below 2^94 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver Kruse63ADB349245F29BC3013
Verified2017-10-12Oliver Kruse63ADB349245F29BC320885213
Verified2017-11-06kkmrkkblmbrbk63ADB349245F29BC32032113
Verified2020-04-17Oliver KruseA80C3CCCD8C27C4F3121453
Verified2024-02-03Wentao HuangA80C3CCCD8C27C4F324523453
History
DateUserTypeResult
2024-02-03slaurCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M248033/161090488577/6537032257598622121/73493248578089712168353 : A80C3CCCD8C27C4F
PRP proof power = 5
PRP: Verified
Proof certified good
2022-04-16Oliver KruseNF-PM1
B1=30000000, B2=10120247026890
2021-08-05Oliver KruseNF-PM1
B1=30000000, B2=3000000000, E=24
2020-04-17Oliver KruseC-PRP
M248033/161090488577/6537032257598622121/73493248578089712168353 : A80C3CCCD8C27C4F
PRP: Verified
PRP without proof (small exponent)
2017-11-06kkmrkkblmbrbkC-PRP
M248033/161090488577/6537032257598622121/73493248578089712168353 : 63ADB349245F29BC
PRP: Verified
PRP without proof (small exponent)
2017-10-12Oliver KruseC-PRP
M248033/161090488577/6537032257598622121/73493248578089712168353 : 63ADB349245F29BC
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M248033/known_factors : 63ADB349245F29BC
PRP without proof (not generated)
2015-01-16TJAOIF-ECM
Factor: 73493248578089712168353 / (ECM curve 36, B1=50000, B2=5000000)
2009-01-14Matthias WurtingerF-ECM
Factor: 6537032257598622121