Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
3617153Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
11791918791030.1old
8470191680243523191859.62015-11-27 12:53:04
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
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-20kkmrkkblmbrbk0073458BB908D01D2013
Verified2017-11-26Oliver Kruse0073458BB908D01D2295653613
History
DateUserTypeResult
2022-05-21JossNF-PM1
B1=100000, B2=130364850
2022-03-22JossNF-PM1
B1=100000
2022-03-04JossNF-PM1
B1=90000
2017-11-26Oliver KruseC-PRP
M3617153/1179191879/847019168024352319 : 0073458BB908D01D
PRP: Verified
PRP without proof (not generated)
2017-09-20kkmrkkblmbrbkC-PRP
M3617153/1179191879/847019168024352319 : 0073458BB908D01D
PRP: Verified
PRP without proof (not generated)
2015-11-27TJAOIF
Factor: 847019168024352319 / TF: 59-60