Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
13883Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
27767514.8old
37542970232044791651.72008-08-26 19:58:41
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001326 / 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 KruseB98CE1E0C4FBED852013
Verified2017-10-12kkmrkkblmbrbkB98CE1E0C4FBED8521166013
Verified2020-04-17Oliver KruseB34CA14B29BF8FBC2389353
Verified (Factored)2022-05-12Jorge CoveiroB34CA14B29BF8FBC1604653
Verified2024-07-01kkmrkkblmbrbkB34CA14B29BF8FBC2844653
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M13883/27767/3754297023204479 : B34CA14B29BF8FBC
PRP: Verified
PRP without proof (small exponent)
2023-11-30-Anonymous-NF-PM1
B1=100000000000, B2=124499752678561260
2023-05-22JacobZNF-PM1
B1=7900000000, B2=32522539163164050
2023-02-11USAFSSNF-PM1
B1=30000000, B2=2010341563230
2022-05-12Jorge CoveiroC-PRP
M13883/27767 : B34CA14B29BF8FBC
PRP: Verified
PRP without proof (small exponent)
2022-02-06Lisander ViaeneNF-PM1
B1=50000
2020-04-17Oliver KruseC-PRP
M13883/27767/3754297023204479 : B34CA14B29BF8FBC
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M13883/27767/3754297023204479 : B98CE1E0C4FBED85
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M13883/27767/3754297023204479 : B98CE1E0C4FBED85
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M13883/27767/3754297023204479 : B98CE1E0C4FBED85
PRP without proof (not generated)
2008-08-26-Anonymous-F-PM1
Factor: 3754297023204479