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:










MnStatusDetails
2819423Factored
FactorDigitsBitsDate
1099997362777455774892166.62017-10-28 16:39:37
ECM
DigitsB1Curves
255000024 / 280
Estimated T-Level: 20.4
TF below 2^63 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David TilleyDDF6493AC0B8EB4D0
Verified (Factored)1999-10-07Adam R. McConnellDDF6493AC0B8EB4D2751090
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-29Oliver KruseE11C4AB55BAA75721106013153
Verified2017-10-29Yaroslav BerezhkoE11C4AB55BAA7572188392953
Verified2017-10-29Yaroslav BerezhkoE11C4AB55BAA75721207460553
History
DateUserTypeResult
2023-04-16Kevin_9611NF-PM1
B1=410000, B2=518328720
2017-10-29Yaroslav BerezhkoC-PRP
M2819423/109999736277745577489 : E11C4AB55BAA7572
PRP: Verified
PRP without proof (not generated)
2017-10-29Yaroslav BerezhkoC-PRP
M2819423/109999736277745577489 : E11C4AB55BAA7572
PRP: Verified
PRP without proof (not generated)
2017-10-29Oliver KruseC-PRP
M2819423/109999736277745577489 : E11C4AB55BAA7572
PRP: Verified
PRP without proof (not generated)
2017-10-28Gordon SpenceF
Factor: 109999736277745577489 / TF: 66-67
2017-03-15JossNF-PM1
B1=336021, B2=3360210, E=6
2017-01-10JossNF-PM1
B1=233349
2016-12-20JossNF-PM1
B1=194458
2016-09-21JossNF-PM1
B1=135041, B2=3630000
2016-09-13JossNF-PM1
B1=135041, B2=3300000, E=6
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2016-02-12ramgeisNF
no factor from 2^65 to 2^66
2015-04-21VictordeHollanderNF
no factor from 2^64 to 2^65
2015-04-21VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-10dbaughNF
no factor from 2^62 to 2^63
2012-02-24Grant McCrackenNF
no factor from 2^61 to 2^62
2009-02-13Sturle SundeNF
no factor from 2^60 to 2^61