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
3442889Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
245891132391134.5old
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
Verified2017-11-06kkmrkkblmbrbk241EC83C42B7FC21145391353
Verified2017-11-22Oliver Kruse241EC83C42B7FC211279014653
History
DateUserTypeResult
2022-08-16JossNF-PM1
B1=3442889, B2=368826150
2021-12-21JossNF-PM1
B1=3442889, B2=112173600
2021-08-04JossNF-PM1
B1=3442889, B2=6885778, E=6
2021-05-28JossNF
no factor from 2^67 to 2^68
2021-05-28JossNF-PM1
B1=3442889
2021-03-17JossNF-PM1
B1=344288, B2=3442889, E=6
2017-11-22Oliver KruseC-PRP
M3442889/24589113239 : 241EC83C42B7FC21
PRP: Verified
PRP without proof (not generated)
2017-11-06kkmrkkblmbrbkC-PRP
M3442889/24589113239 : 241EC83C42B7FC21
PRP: Verified
PRP without proof (not generated)