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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MnDetails
8138243
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 269
TF target 267
Factored
FactorDigitsBitsDate
195317833927.5old
1067780728281246290172166.52020-05-12 08:43:53
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Factored
PRP without proof (not generated)
2018-08-26Oliver Kruse8EA794DF04D182891118084853
Factored
PRP without proof (not generated)
2020-02-17marssystems8EA794DF04D182891324288853
Verified
PRP without proof (not generated)
2020-05-12mrh8EA794DF04D18289270578453
History
DateUserTypeResult
2023-06-06FlaukrotistNFno factor TF: 68-69
2023-03-14FlaukrotistNF-PM1B1=2200000, B2=1939831410
2022-05-03FlaukrotistNFno factor TF: 67-68
2020-05-12mrhC-PRPM8138243/195317833/106778072828124629017 : 8EA794DF04D18289
2020-05-12TJAOIFFactor: 106778072828124629017
2020-02-17marssystemsC-PRPM8138243/195317833 : 8EA794DF04D18289
2018-08-26Oliver KruseC-PRPM8138243/195317833 : 8EA794DF04D18289