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
2273993
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 262
Factored
FactorDigitsBitsDate
209025436571134.3old
ECM
DigitsB1Curves
2550000280 / 280
30250000123 / 640
Estimated T-Level: 26.0 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2017-10-11Oliver KruseB565E8E48075626E1013
Verified
PRP without proof (not generated)
2017-11-21storm5510B565E8E48075626E166781613
History
DateUserTypeResult
2017-11-21storm5510C-PRPM2273993/20902543657 : B565E8E48075626E
2017-10-11Oliver KruseC-PRPM2273993/20902543657 : B565E8E48075626E
2016-04-30alpertronNF-PM1B1=500000, B2=15000000, E=12