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
109897
Composite, with 4 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
24159756491031.2old
1619712538631237.22008-07-26 09:17:11
2007686313611237.52008-07-26 09:17:11
40790821160411341.92008-07-26 09:17:11
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000730 / 1566
Estimated T-Level: 32.3
TF below 2^102 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 Kruse3494F2B8CE17021C4013
Verified
No proof (small exponent)
2017-09-22Oliver Kruse3494F2B8CE17021C4013
Verified
No proof (small exponent)
2017-11-06kkmrkkblmbrbk3494F2B8CE17021C42264113
Verified
No proof (small exponent)
2020-04-17Oliver Kruse5833BF048FF3936344451953
Verified
Not Uploaded
2022-04-15LordJulius5833BF048FF3936346095753
Verified
Certified Good
2022-11-11LordJulius5833BF048FF3936348572753
History
DateUserTypeResult
2026-02-11Jason LynchNF-PM1B1=893574000, B2=137332171046070
2025-12-17ViliamFNF-PM1B1=100000000, B2=2947421827350
2022-11-11curtiscCERT
Proof certified good
2022-11-11LordJuliusC-PRPM109897/2415975649/161971253863/200768631361/4079082116041 : 5833BF048FF39363
Proof Not Uploaded

Proof Power: 5

2022-05-08LordJuliusNFno factor TF: 62-63
2022-05-08LordJuliusNFno factor TF: 60-61
2022-05-08LordJuliusNFno factor TF: 61-62
2022-05-08LordJuliusNFno factor TF: 58-59
2022-05-08LordJuliusNFno factor TF: 59-60
2022-05-08LordJuliusNFno factor TF: 57-58
2022-04-15LordJuliusC-PRPM109897/2415975649/161971253863/200768631361/4079082116041 : 5833BF048FF39363
Proof Not Uploaded

Proof Power: 5

2020-04-17Oliver KruseC-PRPM109897/2415975649/161971253863/200768631361/4079082116041 : 5833BF048FF39363
2017-11-06kkmrkkblmbrbkC-PRPM109897/2415975649/161971253863/200768631361/4079082116041 : 3494F2B8CE17021C
2017-09-21Oliver KruseC-PRPM109897/2415975649/161971253863/200768631361/4079082116041 : 3494F2B8CE17021C
2017-09-21Oliver KruseC-PRPM109897/2415975649/161971253863/200768631361/4079082116041 : 3494F2B8CE17021C
2016-12-10kkmrkkblmbrbkNF-PM1B1=100000000, B2=2000000000, E=12
2008-07-26J FeitsmaFFactor: 4079082116041
2008-07-26J FeitsmaFFactor: 200768631361
2008-07-26J FeitsmaFFactor: 161971253863