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

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MnStatusDetails
336463Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
1279784266634471546.9old
ECM
DigitsB1Curves
2550000280 / 280
30250000581 / 640
Estimated T-Level: 29.5
TF below 2^93 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-23Oliver Kruse588FD3DD9A1DCCF71013
Verified2017-10-13Oliver Kruse588FD3DD9A1DCCF7110908713
Verified2017-12-12ATH588FD3DD9A1DCCF7117322913
Verified2020-04-18Oliver Kruse7A7637D4C1C306B1116422753
Verified2024-09-09kkmrkkblmbrbk7A7637D4C1C306B113384853
History
DateUserTypeResult
2024-09-09Jason LynchCERT
PRP Certification
Proof certified good
2024-09-09kkmrkkblmbrbkC-PRP
M336463/127978426663447 : 7A7637D4C1C306B1
PRP proof power = 5
PRP: Verified
Proof certified good
2021-06-12George WoltmanNF-PP1
Start=2/7, B1=10000000, B2=830000000
2021-06-12George WoltmanNF-PM1
B1=20000000, B2=1820000000
2020-04-18Oliver KruseC-PRP
M336463/127978426663447 : 7A7637D4C1C306B1
PRP: Verified
PRP without proof (small exponent)
2017-12-12ATHC-PRP
M336463/127978426663447 : 588FD3DD9A1DCCF7
PRP: Verified
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M336463/127978426663447 : 588FD3DD9A1DCCF7
PRP: Verified
PRP without proof (small exponent)
2017-09-23Oliver KruseC-PRP
M336463/127978426663447 : 588FD3DD9A1DCCF7
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M336463/127978426663447 : 588FD3DD9A1DCCF7
PRP without proof (not generated)