Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
1234843Factored
FactorDigitsBitsDate
708142067790581691772065.92014-02-18 12:58:41
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)Larry EnglishD78068E91C92A9F30
Verified (Factored)Cornelius CaesarD78068E91C92A9F30
Verified (Factored)apimacD78068E91C92A9F30
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-29Oliver KruseFB8046FC7D2884DE1013
Verified2017-10-20kkmrkkblmbrbkFB8046FC7D2884DE1113361913
History
DateUserTypeResult
2022-03-07LordJuliusNF
no factor from 2^58 to 2^60
2017-10-20kkmrkkblmbrbkC-PRP
M1234843/70814206779058169177 : FB8046FC7D2884DE
PRP: Verified
PRP without proof (not generated)
2017-09-29Oliver KruseC-PRP
M1234843/70814206779058169177 : FB8046FC7D2884DE
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=300000, B2=10000000, E=12
2014-02-18Never Odd Or EvenF
Factor: 70814206779058169177 / TF: 65-66
2014-02-04Never Odd Or EvenNF
no factor from 2^69 to 2^70
2014-02-04Never Odd Or EvenNF
no factor from 2^68 to 2^69
2014-02-04Never Odd Or EvenNF
no factor from 2^67 to 2^68
2014-02-04Never Odd Or EvenNF
no factor from 2^66 to 2^67
2014-02-04Never Odd Or EvenNF
no factor from 2^65 to 2^66
2013-11-10David CampeauNF-PM1
B1=1740000, B2=48720000, E=12
2013-04-09ramgeisNF
no factor from 2^64 to 2^65
2013-04-09ramgeisNF
no factor from 2^63 to 2^64
2012-10-26dbaughNF
no factor from 2^62 to 2^63
2012-09-14AxelssonNF
no factor from 2^61 to 2^62
2008-12-21Architects CubedNF
no factor from 2^60 to 2^61