Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:





MnDetails
5033863
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 270
TF target 265
Factored
FactorDigitsBitsDate
32317400471031.6old
86201646462252711652.92014-08-29 11:46:13
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-11-22kkmrkkblmbrbk7F07C3438F2DADF62228145653
Verified
PRP without proof (not generated)
2018-04-25storm55107F07C3438F2DADF62226530853
History
DateUserTypeResult
2025-02-02Sid & AndyNF-PM1B1=5200000, B2=6307307370
2025-01-06Sid & AndyNFno factor TF: 68-70
2024-05-11cramsey87NF-PM1B1=500000, B2=324995580
2023-05-11This -Anonymous-NF-PM1B1=50000, B2=1000000
2018-04-25storm5510C-PRPM5033863/3231740047/8620164646225271 : 7F07C3438F2DADF6
2017-11-22kkmrkkblmbrbkC-PRPM5033863/3231740047/8620164646225271 : 7F07C3438F2DADF6
2014-08-29TJAOIFFactor: 8620164646225271