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:





MnDetails
6911
Composite, with 3 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
34158481236791341.6old
1151609779023671546.7old
3499464159112304857709387433252732104.8old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000002913 / 16550
Estimated T-Level: 45.9
TF below 2^147 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
No proof (small exponent)
2017-09-21Oliver Kruse60144E379EAA569F3013
Verified
No proof (small exponent)
2017-10-02kkmrkkblmbrbk60144E379EAA569F3013
Verified
No proof (small exponent)
2017-12-07ATH60144E379EAA569F394513
Verified
No proof (small exponent)
2020-04-17Oliver Kruse48DE51C2BC2647893535553
Verified
No proof (small exponent)
2024-02-03Wentao Huang48DE51C2BC2647893305653
History
DateUserTypeResult
2025-03-23masserNF-PP1Start=173/61, B1=1000000000, B2=999000000000
2025-03-15masserNF-PP1Start=6/5, B1=1000000000, B2=999000000000
2025-03-06masserNF-PP1Start=2/7, B1=1000000000, B2=999000000000
2024-02-03Wentao HuangC-PRP
M6911/3415848123679/115160977902367/34994641591123048577093874332527 : 48DE51C2BC264789
2023-08-18-anonymous-NF-PM1B1=35000000000, B2=149103333456127050
2021-12-16ANONYMOUSNF-PM1B1=100000000
2020-04-17Oliver KruseC-PRP
M6911/3415848123679/115160977902367/34994641591123048577093874332527 : 48DE51C2BC264789
2017-12-07ATHC-PRP
M6911/3415848123679/115160977902367/34994641591123048577093874332527 : 60144E379EAA569F
2017-10-02kkmrkkblmbrbkC-PRPM6911/3415848123679/115160977902367/34994641591123048577093874332527 : 60144E379EAA569F
2017-09-21Oliver KruseC-PRPM6911/known_factors : 60144E379EAA569F
1999-04-23-anonymous-F-PM1Factor: 115160977902367