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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MnStatusDetails
1234577Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
17284079824.0old
1103810604171236.72008-07-15 09:57:01
ECM
DigitsB1Curves
2550000280 / 280
30250000104 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2004-09-02Thomas HertzE8A49805FFAAA61E3845
Verified (Factored)2005-04-02Andrew MuellerE8A49805FFAAA61E1086582
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-29Oliver Kruse476D4CDB5B80C33E2013
Verified2017-10-19kkmrkkblmbrbk476D4CDB5B80C33E230263113
History
DateUserTypeResult
2017-10-19kkmrkkblmbrbkC-PRP
M1234577/17284079/110381060417 : 476D4CDB5B80C33E
PRP: Verified
PRP without proof (not generated)
2017-09-29Oliver KruseC-PRP
M1234577/17284079/110381060417 : 476D4CDB5B80C33E
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=300000, B2=10000000, E=12
2008-07-15J FeitsmaF
Factor: 110381060417