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
11527Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
20587223824.3old
437369631640871445.32008-08-26 19:58:35
5128617687227824101672168.82008-08-29 02:24:28
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001291 / 9201
Estimated T-Level: 40.7
TF below 2^130 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse880DE0823E848D083013
Verified2017-10-02kkmrkkblmbrbk880DE0823E848D083013
Verified2017-12-07ATH880DE0823E848D083658213
Verified2020-04-17Oliver Kruse0FF6F321AA6F7A513555553
Verified2024-07-01kkmrkkblmbrbk0FF6F321AA6F7A51394053
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M11527/20587223/43736963164087/512861768722782410167 : 0FF6F321AA6F7A51
PRP: Verified
PRP without proof (small exponent)
2023-01-20-Anonymous-NF-PM1
B1=100000000000, B2=122192573512709700
2020-04-17Oliver KruseC-PRP
M11527/20587223/43736963164087/512861768722782410167 : 0FF6F321AA6F7A51
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M11527/20587223/43736963164087/512861768722782410167 : 880DE0823E848D08
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M11527/20587223/43736963164087/512861768722782410167 : 880DE0823E848D08
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M11527/20587223/43736963164087/512861768722782410167 : 880DE0823E848D08
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M11527/20587223/43736963164087/512861768722782410167 : 880DE0823E848D08
PRP without proof (not generated)
2016-09-07kkmrkkblmbrbkNF-PM1
B1=100000000, B2=10000000000, E=12
2008-08-29-Anonymous-F-ECM
Factor: 512861768722782410167
2008-08-26-Anonymous-F
Factor: 43736963164087