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
13267Factored
FactorDigitsBitsDate
8271194345804927721829722939963132106.0old
276801017602695822197215634252320882671140131.02023-06-02 20:20:49
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001354 / 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
Verified (Factored)2017-09-21Oliver Kruse55D865037FFC6B861013
Verified (Factored)2017-10-12kkmrkkblmbrbk55D865037FFC6B861556713
Verified (Factored)2020-04-17Oliver KruseF4FE4AAD2461B3831545253
Verified2023-06-02Denial140F4FE4AAD2461B3832797753
P-1 factors
DateFactorB1B2
2023-10-1082711943458049277218297229399631100000000000122154521813133808
History
DateUserTypeResult
2023-10-10-Anonymous-F-PM1
Factor: 82711943458049277218297229399631 / (P-1, B1=100000000000, B2=122154521813133810)
2023-06-02Denial140C-PRP
M13267/82711943458049277218297229399631/2768010176026958221972156342523208826711 : F4FE4AAD2461B383
PRP: Verified
PRP without proof (small exponent)
2023-06-02Denial140F-ECM
Factor: 2768010176026958221972156342523208826711 / (ECM curve 159, B1=3000000, B2=22972799850, Sigma=5285225717240609)
2023-05-18JacobZNF-PM1
B1=8300000000, B2=34023579430740900
2020-04-17Oliver KruseC-PRP
M13267/82711943458049277218297229399631 : F4FE4AAD2461B383
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M13267/82711943458049277218297229399631 : 55D865037FFC6B86
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M13267/82711943458049277218297229399631 : 55D865037FFC6B86
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M13267/82711943458049277218297229399631 : 55D865037FFC6B86
PRP without proof (not generated)