Marin Mersenne 2^P-1
Username
Password
Forgot password?
Black
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:





MnDetails
109211
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
218423617.7old
90324049671033.12008-07-26 09:17:10
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000751 / 1566
Estimated T-Level: 32.4
TF below 2^103 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 Kruse7E56941C3F21AE0F2013
Verified
No proof (small exponent)
2017-10-13kkmrkkblmbrbk7E56941C3F21AE0F24007013
Verified
No proof (small exponent)
2020-04-17Oliver Kruse7C5C46B54EA3E48825483453
Verified
Not Uploaded
2022-04-15LordJulius7C5C46B54EA3E48823787253
Factored
Not Uploaded
2022-05-12Jorge Coveiro7C5C46B54EA3E48814250853
Verified
Certified Good
2022-11-08LordJulius7C5C46B54EA3E48824007853
History
DateUserTypeResult
2026-02-10Jason LynchNF-PM1B1=901910000, B2=137332171046070
2025-12-16ViliamFNF-PM1B1=100000000, B2=2097943848000
2022-11-08John HockingCERT
Proof certified good
2022-11-08LordJuliusC-PRPM109211/218423/9032404967 : 7C5C46B54EA3E488
Proof Not Uploaded

Proof Power: 5

2022-05-12Jorge CoveiroC-PRPM109211/218423 : 7C5C46B54EA3E488
Proof Not Uploaded

Proof Power: 5

2022-05-07LordJuliusNFno factor TF: 62-63
2022-05-07LordJuliusNFno factor TF: 60-61
2022-05-07LordJuliusNFno factor TF: 61-62
2022-05-07LordJuliusNFno factor TF: 59-60
2022-05-07LordJuliusNFno factor TF: 58-59
2022-05-07LordJuliusNFno factor TF: 57-58
2022-04-15LordJuliusC-PRPM109211/218423/9032404967 : 7C5C46B54EA3E488
Proof Not Uploaded

Proof Power: 5

2020-04-17Oliver KruseC-PRPM109211/218423/9032404967 : 7C5C46B54EA3E488
2017-10-13kkmrkkblmbrbkC-PRPM109211/218423/9032404967 : 7E56941C3F21AE0F
2017-09-21Oliver KruseC-PRPM109211/218423/9032404967 : 7E56941C3F21AE0F
2017-09-21Oliver KruseC-PRPM109211/218423/9032404967 : 7E56941C3F21AE0F
2016-12-10kkmrkkblmbrbkNF-PM1B1=100000000, B2=2000000000, E=12
2008-07-26J FeitsmaFFactor: 9032404967