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
950023
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
1708684236132150944392167.22014-09-15 11:33:59
36297682336365750418012271.6old
P-1 factors
DateFactorsB1B2
2014-09-15170868423613215094439
2000005000000
ECM
DigitsB1Curves
2550000280 / 280
30250000100 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
No proof (small exponent)
2017-10-05Oliver KruseBCED312B756629BF2013
Verified
No proof (small exponent)
2017-10-15Oliver KruseBCED312B756629BF251891513
Verified
No proof (small exponent)
2017-12-23ATHBCED312B756629BF246733013
Verified
No proof (small exponent)
2020-04-24Oliver KruseA903B41F61588A79275227353
Verified
Certified Good
2025-05-25kkmrkkblmbrbkA903B41F61588A79257844053
History
DateUserTypeResult
2025-05-25KCCERT
Proof certified good
2025-05-25kkmrkkblmbrbkC-PRP
Proof Certified Good

Proof Power: 6

2022-12-14USAFSSNF-PM1B1=1250000, B2=2527832580
2020-04-24Oliver KruseC-PRP
M950023/170868423613215094439/3629768233636575041801 : A903B41F61588A79
2017-12-23ATHC-PRP
M950023/170868423613215094439/3629768233636575041801 : BCED312B756629BF
2017-10-15Oliver KruseC-PRP
M950023/3629768233636575041801/170868423613215094439 : BCED312B756629BF
2017-10-05Oliver KruseC-PRPM950023/3629768233636575041801/170868423613215094439 : BCED312B756629BF
2017-09-28Oliver KruseC-PRPM950023/3629768233636575041801/170868423613215094439 : BCED312B756629BF
2014-09-15alpertronF-PM1Factor: 170868423613215094439 / B1=200000, B2=5000000
2002-02-24-anonymous-NF-PM1B1=4096, B2=409600
2002-01-08-anonymous-NF-PM1B1=2000, B2=200000
2001-12-08-anonymous-C-LLBD654C6BCBB268__
2001-10-25-anonymous-NFno factor TF: 1-57
2000-11-25-anonymous-NFno factor TF: 1-56
2000-06-23-anonymous-NFno factor TF: 1-55