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

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MnStatusDetails
46439Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
4599751093929773908241780935673098.52009-10-30 16:13:23
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
403000000806 / 4588
Estimated T-Level: 35.9
TF below 2^114 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Unknown003D0
Verified (Factored)George Woltman6AD5D1C7D4C4003D0
Verified (Factored)Brian J. Beesley6AD5D1C7D4C4003D0
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse82BC8F388040ABC11013
Verified2017-10-13kkmrkkblmbrbk82BC8F388040ABC114588913
Verified2020-04-17Oliver Kruse452225007A71C3D41936653
Verified2024-07-01kkmrkkblmbrbk452225007A71C3D411396153
History
DateUserTypeResult
2024-12-14masserNF-PP1
Start=6/5, B1=45000000, B2=44955000000
2024-12-12masserNF-PP1
Start=137/47, B1=45000000, B2=44955000000
2024-11-27masserNF-PP1
Start=2/7, B1=45000000, B2=44955000000
2024-07-01kkmrkkblmbrbkC-PRP
M46439/459975109392977390824178093567 : 452225007A71C3D4
PRP: Verified
PRP without proof (small exponent)
2023-04-28JacobZNF-PM1
B1=770000000, B2=562856158764900
2022-05-07LordJuliusNF
no factor from 2^57 to 2^58
2020-04-17Oliver KruseC-PRP
M46439/459975109392977390824178093567 : 452225007A71C3D4
PRP: Verified
PRP without proof (small exponent)
2017-10-13kkmrkkblmbrbkC-PRP
M46439/459975109392977390824178093567 : 82BC8F388040ABC1
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M46439/459975109392977390824178093567 : 82BC8F388040ABC1
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M46439/459975109392977390824178093567 : 82BC8F388040ABC1
PRP without proof (not generated)
2016-09-26kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2009-10-30George WoltmanF-ECM
Factor: 459975109392977390824178093567
2009-02-07Sturle SundeNF
no factor from 2^59 to 2^60
2009-01-12Sturle SundeNF
no factor from 2^58 to 2^59