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
6361
Composite, with 5 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
4048163681271238.6old
21698702523180631371960.9old
4683667305222279358072168.7old
464749269553388192939754010312995.2old
150996089215853917011436992141530605737120.22021-03-25 11:35:12
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000003098 / 16550
Estimated T-Level: 45.9 ⓘ
TF below 2^148 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 Kruse1675A882BF3632584013
Factored
No proof (small exponent)
2017-10-02kkmrkkblmbrbk1675A882BF3632584013
Factored
No proof (small exponent)
2017-12-07ATH1675A882BF363258493213
Factored
No proof (small exponent)
2020-04-17Oliver Kruse4679CB95E27404E04538253
Verified
No proof (small exponent)
2021-03-25mnd94679CB95E27404E05428453
Verified
No proof (small exponent)
2021-03-28Joe S.4679CB95E27404E05227053
History
DateUserTypeResult
2025-03-19masserNF-PP1Start=119/37, B1=1000000000, B2=999000000000
2025-03-11masserNF-PP1Start=6/5, B1=1000000000, B2=999000000000
2025-03-02masserNF-PP1Start=2/7, B1=1000000000, B2=999000000000
2023-08-05-anonymous-NF-PM1B1=39000000000, B2=163105468633407300
2021-08-02ViliamFNF-PM1B1=500000000, B2=90500000000
2021-03-28Joe S.C-PRPM6361/404816368127/2169870252318063137/468366730522227935807/46474926955338819293975401031/1509960892158539170114369921415306057 : 4679CB95E27404E0
2021-03-25mnd9C-PRPM6361/404816368127/2169870252318063137/468366730522227935807/46474926955338819293975401031/1509960892158539170114369921415306057 : 4679CB95E27404E0
2021-03-25Ryan PropperF-ECMFactor: 1509960892158539170114369921415306057
2020-04-17Oliver KruseC-PRPM6361/404816368127/2169870252318063137/468366730522227935807/46474926955338819293975401031 : 4679CB95E27404E0
2017-12-07ATHC-PRPM6361/404816368127/2169870252318063137/468366730522227935807/46474926955338819293975401031 : 1675A882BF363258
2017-10-02kkmrkkblmbrbkC-PRPM6361/404816368127/2169870252318063137/468366730522227935807/46474926955338819293975401031 : 1675A882BF363258
2017-09-21Oliver KruseC-PRPM6361/known_factors : 1675A882BF363258