Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
5741Composite, with 4 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
48224401825.5old
1299748391500731546.9old
365824264267966573272065.0old
91794887074242339662189857272892.9old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000003115 / 16550
Estimated T-Level: 45.9
TF below 2^148 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse0C6001A6F5A098844013
Verified2017-10-02kkmrkkblmbrbk0C6001A6F5A098844013
Verified2017-12-07ATH0C6001A6F5A09884469113
Verified2020-04-17Oliver KruseB6388B5F149FA4B24361753
Verified2024-02-03Wentao HuangB6388B5F149FA4B2456353
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2024-10-29Denial140factor ECM smallC10S120.83 % 2024-10-31
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M5741/48224401/129974839150073/36582426426796657327/9179488707424233966218985727 : B6388B5F149FA4B2
PRP: Verified
PRP without proof (small exponent)
2023-07-19-Anonymous-NF-PM1
B1=43000000000, B2=180124832351714250
2021-12-16Lisander ViaeneNF-PM1
B1=200000000
2021-08-31H MichaelsonNF-PM1
B1=1000000000, B2=100000000000
2020-04-17Oliver KruseC-PRP
M5741/48224401/129974839150073/36582426426796657327/9179488707424233966218985727 : B6388B5F149FA4B2
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M5741/48224401/129974839150073/36582426426796657327/9179488707424233966218985727 : 0C6001A6F5A09884
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M5741/48224401/129974839150073/36582426426796657327/9179488707424233966218985727 : 0C6001A6F5A09884
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M5741/known_factors : 0C6001A6F5A09884
PRP without proof (not generated)