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
3371
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
75196502058602112011962.7old
1646736062726857367703612477.1old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000015024 / 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
Verified
No proof (small exponent)
2017-09-21Oliver KruseF52ACB1A20A0D0A92013
Verified
No proof (small exponent)
2017-10-02kkmrkkblmbrbkF52ACB1A20A0D0A92013
Verified
No proof (small exponent)
2017-12-07ATHF52ACB1A20A0D0A9290213
Verified
No proof (small exponent)
2020-04-17Oliver KruseD78F6D2671D9246027053
Verified
No proof (small exponent)
2024-02-03Wentao HuangD78F6D2671D924602197553
History
DateUserTypeResult
2025-04-28masserNF-PP1Start=118/13, B1=3100000000, B2=3096900000000
2024-02-03Wentao HuangC-PRPM3371/7519650205860211201/164673606272685736770361 : D78F6D2671D92460
2022-03-24mikrNF-PM1B1=80000000000, B2=268799861365815780
2021-07-10ViliamFNF-PM1B1=1000000000, B2=193000000000
2020-04-17Oliver KruseC-PRPM3371/7519650205860211201/164673606272685736770361 : D78F6D2671D92460
2017-12-07ATHC-PRPM3371/7519650205860211201/164673606272685736770361 : F52ACB1A20A0D0A9
2017-10-02kkmrkkblmbrbkC-PRPM3371/7519650205860211201/164673606272685736770361 : F52ACB1A20A0D0A9
2017-09-21Oliver KruseC-PRPM3371/known_factors : F52ACB1A20A0D0A9