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
2245583Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
16644126461031340.6old
334633776600852775992064.92018-02-08 12:13:38
ECM
DigitsB1Curves
2550000280 / 280
30250000162 / 640
Estimated T-Level: 26.3
TF below 2^82 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-10Oliver Kruse9EFEC7948A3DB5651013
Verified (Factored)2017-11-21kkmrkkblmbrbk9EFEC7948A3DB5651160037113
Verified2018-02-08ATH0FE645FB5A6DAB322187099453
Verified2018-02-09Oliver Kruse0FE645FB5A6DAB32222861553
History
DateUserTypeResult
2018-02-09Oliver KruseC-PRP
M2245583/1664412646103/33463377660085277599 : 0FE645FB5A6DAB32
PRP: Verified
PRP without proof (not generated)
2018-02-08ATHC-PRP
M2245583/1664412646103/33463377660085277599 : 0FE645FB5A6DAB32
PRP: Verified
PRP without proof (not generated)
2018-02-08TJAOIF
Factor: 33463377660085277599 / TF: 64-65
2017-11-21kkmrkkblmbrbkC-PRP
M2245583/1664412646103 : 9EFEC7948A3DB565
PRP: Verified
PRP without proof (not generated)
2017-10-10Oliver KruseC-PRP
M2245583/1664412646103 : 9EFEC7948A3DB565
PRP: Verified
PRP without proof (not generated)
2016-04-29alpertronNF-PM1
B1=500000, B2=15000000, E=12