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
2613139
Composite, with 6 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
47036503825.5old
88846727826.42008-07-14 20:29:06
79282637271032.92008-07-14 20:29:06
21916919420811341.02008-07-14 20:29:06
28184373597244331651.32014-03-31 01:28:08
71752241141204631652.72014-03-31 01:28:08
ECM
DigitsB1Curves
2550000153 / 280
Estimated T-Level: 22.7 ⓘ
TF below 2^71 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2017-10-18Oliver Kruse211A1DA451143A1F6160438853
Verified
PRP without proof (not generated)
2017-12-02storm5510211A1DA451143A1F6252071753
History
DateUserTypeResult
2019-07-04alpertronNF-PM1B1=2000000, B2=60000000, E=12
2017-12-02storm5510C-PRPM2613139/47036503/2191691942081/7928263727/88846727/7175224114120463/2818437359724433 : 211A1DA451143A1F
2017-10-18Oliver KruseC-PRPM2613139/47036503/2191691942081/7928263727/88846727/7175224114120463/2818437359724433 : 211A1DA451143A1F
2014-03-31pdazzlFFactor: 2818437359724433 / TF: 48-54
2014-03-31pdazzlFFactor: 7175224114120463 / TF: 48-54
2008-07-14George WoltmanF-ECMFactor: 88846727
2008-07-14George WoltmanF-ECMFactor: 7928263727
2008-07-14George WoltmanF-ECMFactor: 2191691942081