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
3082291Factored
FactorDigitsBitsDate
623996141851987975192065.82009-04-25 18:55:02
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Galen Charlton02DCB85F6FD95F680
Verified (Factored)1999-06-15Morten.Schmidt 202DCB85F6FD95F68554403
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-29Oliver KruseD90C6907D8A402D2166973553
Verified2017-12-11kkmrkkblmbrbkD90C6907D8A402D2112786053
History
DateUserTypeResult
2022-03-14LordJuliusNF
no factor from 2^66 to 2^67
2022-03-14LordJuliusNF
no factor from 2^64 to 2^65
2022-03-14LordJuliusNF
no factor from 2^63 to 2^64
2022-03-14LordJuliusNF
no factor from 2^62 to 2^63
2022-03-14LordJuliusNF
no factor from 2^1 to 2^62
2022-02-09JossNF-PM1
B1=1000000, B2=119912100
2021-06-16JossNF
no factor from 2^67 to 2^68
2021-03-05JossNF-PM1
B1=308229, B2=3390520, E=6
2017-12-11kkmrkkblmbrbkC-PRP
M3082291/62399614185198797519 : D90C6907D8A402D2
PRP: Verified
PRP without proof (not generated)
2017-10-29Oliver KruseC-PRP
M3082291/62399614185198797519 : D90C6907D8A402D2
PRP: Verified
PRP without proof (not generated)
2009-04-25KAMCOBILLF-ECM
Factor: 62399614185198797519
2009-02-14Sturle SundeNF
no factor from 2^60 to 2^61
2008-02-20David CampeauNF-PM1
B1=40000, B2=1000000, E=6