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
7741
Composite, with 4 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
8964079723.1old
97295248775210231653.1old
4102830322476635328922574092788.4old
9587793793938068668870554858541266640138126.22017-04-13 13:39:32
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
551100000007141 / 40830
Estimated T-Level: 50.9 ⓘ
TF below 2^164 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 KruseBA22B0A193D1A9A54013
Verified
No proof (small exponent)
2017-10-02kkmrkkblmbrbkBA22B0A193D1A9A54013
Verified
No proof (small exponent)
2017-12-07ATHBA22B0A193D1A9A54645913
Verified
No proof (small exponent)
2020-04-17Oliver Kruse48E6732D8AB04C8B4716653
Verified
No proof (small exponent)
2024-02-03Wentao Huang48E6732D8AB04C8B4655953
History
DateUserTypeResult
2025-05-28masserNF-PP1Start=83/53, B1=1300000000, B2=1298700000000
2024-11-09masserNF-PM1B1=50000000000, B2=49430291361551100
2024-02-03Wentao HuangC-PRPM7741/8964079/9729524877521023/410283032247663532892257409/95877937939380686688705548585412666401 : 48E6732D8AB04C8B
2021-07-09ViliamFNF-PM1B1=1000000000, B2=201000000000
2020-04-17Oliver KruseC-PRPM7741/8964079/9729524877521023/410283032247663532892257409/95877937939380686688705548585412666401 : 48E6732D8AB04C8B
2017-12-07ATHC-PRPM7741/8964079/9729524877521023/410283032247663532892257409/95877937939380686688705548585412666401 : BA22B0A193D1A9A5
2017-10-02kkmrkkblmbrbkC-PRPM7741/8964079/9729524877521023/410283032247663532892257409/95877937939380686688705548585412666401 : BA22B0A193D1A9A5
2017-09-21Oliver KruseC-PRPM7741/known_factors : BA22B0A193D1A9A5
2017-04-13kkmrkkblmbrbkF-ECMFactor: 95877937939380686688705548585412666401
2003-03-27-anonymous-F-ECMFactor: 410283032247663532892257409