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
3347
Composite, with 5 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
26777514.7old
119588311926.8old
319796813111134.9old
784249605516928641191763728618074032612140132.52018-11-14 02:57:25
258004170697928441542870864251739326323923576951753735816958190.72021-06-30 23:40:43
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000014802 / 40830
Estimated T-Level: 51.8 ⓘ
TF below 2^167 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 KruseC24B4BDF984494B63013
Factored
No proof (small exponent)
2017-10-12kkmrkkblmbrbkC24B4BDF984494B6353713
Factored
No proof (small exponent)
2018-11-15eteo955F1DCCB31F420D465653
Factored
No proof (small exponent)
2018-11-16Oliver Kruse955F1DCCB31F420D4277253
Factored
No proof (small exponent)
2020-04-17Oliver Kruse955F1DCCB31F420D4253153
Verified
No proof (small exponent)
2021-07-01mikr955F1DCCB31F420D5143053
Verified
No proof (small exponent)
2021-07-02kutens955F1DCCB31F420D5183053
History
DateUserTypeResult
2025-04-26masserNF-PP1Start=105/59, B1=3100000000, B2=3096900000000
2024-05-22masserNF-PM1B1=77000000000, B2=107408793065243670
2021-07-10ViliamFNF-PM1B1=1000000000, B2=193000000000
2021-07-02kutensC-PRPM3347/26777/119588311/31979681311/7842496055169286411917637286180740326121/2580041706979284415428708642517393263239235769517537358169 : 955F1DCCB31F420D
2021-07-01mikrC-PRPM3347/26777/119588311/31979681311/7842496055169286411917637286180740326121/2580041706979284415428708642517393263239235769517537358169 : 955F1DCCB31F420D
2021-06-30Ryan PropperF-ECMFactor: 2580041706979284415428708642517393263239235769517537358169
2020-04-17Oliver KruseC-PRPM3347/26777/119588311/31979681311/7842496055169286411917637286180740326121 : 955F1DCCB31F420D
2018-11-16Oliver KruseC-PRPM3347/26777/119588311/31979681311/7842496055169286411917637286180740326121 : 955F1DCCB31F420D
2018-11-15eteoC-PRPM3347/26777/119588311/31979681311/7842496055169286411917637286180740326121 : 955F1DCCB31F420D
2018-11-14eteoF-ECMFactor: 7842496055169286411917637286180740326121
2017-10-12kkmrkkblmbrbkC-PRPM3347/26777/119588311/31979681311 : C24B4BDF984494B6
2017-09-21Oliver KruseC-PRPM3347/26777/119588311/31979681311 : C24B4BDF984494B6
2017-09-21Oliver KruseC-PRPM3347/26777/119588311/31979681311 : C24B4BDF984494B6