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
19069Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
6063943722.5old
35659031825.12008-08-26 19:58:54
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000003226 / 4588
Estimated T-Level: 38.5
TF below 2^123 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse00EDE4CD6FA1C1A12013
Verified2017-10-12kkmrkkblmbrbk00EDE4CD6FA1C1A121837313
Verified2020-04-17Oliver Kruse393F1B9C338858C121725753
Verified2024-07-01kkmrkkblmbrbk393F1B9C338858C124753
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2025-10-04masserfactor ECM small0.00 % 2025-10-04
History
DateUserTypeResult
2024-12-27masserNF-PP1
Start=6/5, B1=132000000, B2=131868000000
2024-12-23masserNF-PP1
Start=73/67, B1=132000000, B2=131868000000
2024-12-17masserNF-PP1
Start=2/7, B1=132000000, B2=131868000000
2024-07-01kkmrkkblmbrbkC-PRP
M19069/35659031/6063943 : 393F1B9C338858C1
PRP: Verified
PRP without proof (small exponent)
2023-05-17JacobZNF-PM1
B1=5500000000, B2=14903498735495370
2021-08-01ViliamFNF-PM1
B1=250000000, B2=42750000000
2020-04-17Oliver KruseC-PRP
M19069/6063943/35659031 : 393F1B9C338858C1
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M19069/6063943/35659031 : 00EDE4CD6FA1C1A1
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M19069/6063943/35659031 : 00EDE4CD6FA1C1A1
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M19069/6063943/35659031 : 00EDE4CD6FA1C1A1
PRP without proof (not generated)
2008-08-26-Anonymous-F
Factor: 35659031