Marin Mersenne 2^P-1
Username
Password
Forgot password?
Blue
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
359987Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
563458744143911445.7old
ECM
DigitsB1Curves
2550000280 / 280
30250000514 / 640
Estimated T-Level: 29.0
TF below 2^91 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-23Oliver Kruse09C2C7DD4DCFBEEF1013
Verified2017-09-24Oliver Kruse09C2C7DD4DCFBEEF1013
Verified2017-11-07kkmrkkblmbrbk09C2C7DD4DCFBEEF115695113
Verified2020-04-18Oliver Kruse114D2D91E0C22236130876953
Verified2024-09-20kkmrkkblmbrbk114D2D91E0C2223616260353
History
DateUserTypeResult
2024-10-01yuriy_5-1NF-PM1
B1=12000002, B2=2129111294310
2024-09-20GufesaCERT
PRP Certification
Proof certified good
2024-09-20kkmrkkblmbrbkC-PRP
M359987/56345874414391 : 114D2D91E0C22236
PRP proof power = 5
PRP: Verified
Proof certified good
2023-12-05USAFSSNF-PM1
B1=1530000, B2=5367308100
2022-02-07Lisander ViaeneNF-PM1
B1=50000
2020-04-18Oliver KruseC-PRP
M359987/56345874414391 : 114D2D91E0C22236
PRP: Verified
PRP without proof (small exponent)
2017-11-07kkmrkkblmbrbkC-PRP
M359987/56345874414391 : 09C2C7DD4DCFBEEF
PRP: Verified
PRP without proof (small exponent)
2017-09-24Oliver KruseC-PRP
M359987/56345874414391 : 09C2C7DD4DCFBEEF
PRP: Verified
PRP without proof (not generated)
2017-09-23Oliver KruseC-PRP
M359987/56345874414391 : 09C2C7DD4DCFBEEF
PRP: Verified
PRP without proof (not generated)