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

PrimeNet Exponent Status

Exponent Range:





MnDetails
13751
Composite, with 5 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
247519617.9old
75282049671032.82008-08-26 19:58:41
115427803114034571753.42008-08-29 02:24:33
19583393660638029131960.82008-08-26 19:58:41
2801828658556007787171548062077074184738124.42023-05-21 04:34:05
P-1 factors
DateFactorsB1B2
2024-01-29No new factors discovered100000000000122154521813133808
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001447 / 9201
Estimated T-Level: 40.8 ⓘ
TF below 2^130 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
No proof (small exponent)
2017-09-21Oliver Kruse3B332147DE58053D4013
Factored
No proof (small exponent)
2017-10-02kkmrkkblmbrbk3B332147DE58053D4013
Factored
No proof (small exponent)
2017-12-07ATH3B332147DE58053D4845313
Factored
No proof (small exponent)
2020-04-17Oliver KruseAA0C70AEEC00F1774562553
Verified
No proof (small exponent)
2023-05-21JacobZAA0C70AEEC00F1775950353
Verified
No proof (small exponent)
2023-06-11Denial140AA0C70AEEC00F1775181453
Verified
No proof (small exponent)
2023-06-11Denial140AA0C70AEEC00F1775528853
History
DateUserTypeResult
2025-02-22masserNF-PP1Start=178/11, B1=430000000, B2=429570000000
2025-02-10masserNF-PP1Start=2/7, B1=430000000, B2=429570000000
2025-01-23masserNF-PP1Start=6/5, B1=430000000, B2=429570000000
2024-01-29-anonymous-F-PM1Factor: 28018286585560077871715480620770741847 / B1=100000000000, B2=122154521813133810
2023-06-11Denial140C-PRPM13751/247519/7528204967/11542780311403457/1958339366063802913/28018286585560077871715480620770741847 : AA0C70AEEC00F177
2023-06-11Denial140C-PRPM13751/247519/7528204967/11542780311403457/1958339366063802913/28018286585560077871715480620770741847 : AA0C70AEEC00F177
2023-05-21JacobZC-PRPM13751/247519/7528204967/11542780311403457/1958339366063802913/28018286585560077871715480620770741847 : AA0C70AEEC00F177
2023-05-21JacobZF-PM1Factor: 28018286585560077871715480620770741847 / B1=8000000000, B2=35524619698317750
2023-02-11USAFSSNF-PM1B1=6000000, B2=472858716330
2022-02-06ANONYMOUSNF-PM1B1=50000
2020-04-17Oliver KruseC-PRPM13751/247519/7528204967/11542780311403457/1958339366063802913 : AA0C70AEEC00F177
2017-12-07ATHC-PRPM13751/247519/7528204967/11542780311403457/1958339366063802913 : 3B332147DE58053D
2017-10-02kkmrkkblmbrbkC-PRPM13751/247519/7528204967/11542780311403457/1958339366063802913 : 3B332147DE58053D
2017-09-21Oliver KruseC-PRPM13751/247519/7528204967/1958339366063802913/11542780311403457 : 3B332147DE58053D
2008-08-29-anonymous-FFactor: 11542780311403457
2008-08-26-anonymous-F-ECMFactor: 1958339366063802913
2008-08-26-anonymous-FFactor: 7528204967