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

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MnStatusDetails
48479Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
96959516.6old
37567901279771341.82008-08-26 20:05:19
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
403000000660 / 4588
Estimated T-Level: 35.7
TF below 2^114 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseCFDAD89674E48B7C2013
Verified2017-10-13kkmrkkblmbrbkCFDAD89674E48B7C23999713
Verified2020-04-17Oliver Kruse1B7C1C0BDD2801BC24320953
Verified (Factored)2022-05-12Jorge Coveiro1B7C1C0BDD2801BC11885253
Verified2024-07-01kkmrkkblmbrbk1B7C1C0BDD2801BC24332653
History
DateUserTypeResult
2024-12-14masserNF-PP1
Start=118/17, B1=45000000, B2=44955000000
2024-12-12masserNF-PP1
Start=6/5, B1=45000000, B2=44955000000
2024-12-05masserNF-PP1
Start=2/7, B1=45000000, B2=44955000000
2024-07-01kkmrkkblmbrbkC-PRP
M48479/3756790127977/96959 : 1B7C1C0BDD2801BC
PRP: Verified
PRP without proof (small exponent)
2023-05-05JacobZNF-PM1
B1=730000000, B2=562856158764900
2023-04-16carlos56F-ECM
Factor: 96959 / (ECM curve 1, B1=1000000, B2=1000000000, Sigma=2286093854289027)
2022-05-12Jorge CoveiroC-PRP
M48479/96959 : 1B7C1C0BDD2801BC
PRP: Verified
PRP without proof (small exponent)
2020-04-17Oliver KruseC-PRP
M48479/96959/3756790127977 : 1B7C1C0BDD2801BC
PRP: Verified
PRP without proof (small exponent)
2017-10-13kkmrkkblmbrbkC-PRP
M48479/96959/3756790127977 : CFDAD89674E48B7C
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M48479/96959/3756790127977 : CFDAD89674E48B7C
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M48479/96959/3756790127977 : CFDAD89674E48B7C
PRP without proof (not generated)
2016-09-30kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2008-08-26-Anonymous-F
Factor: 3756790127977