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
6305939Factored
FactorDigitsBitsDate
96603353886703049291963.12014-08-17 11:19:58
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)1999-01-02Gerrit HurenkampDE210238E7BAC0B60
Verified (Factored)2001-07-17Ian RichesDE210238E7BAC0B61892458
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-24kkmrkkblmbrbk720879D38CDF88F41348954553
Verified2018-09-26rucio720879D38CDF88F41388573953
History
DateUserTypeResult
2022-08-10LordJuliusNF
no factor from 2^67 to 2^68
2022-08-10LordJuliusNF
no factor from 2^66 to 2^67
2022-08-10LordJuliusNF
no factor from 2^65 to 2^66
2022-08-10LordJuliusNF
no factor from 2^64 to 2^65
2022-08-10LordJuliusNF
no factor from 2^1 to 2^63
2018-09-26rucioC-PRP
M6305939/9660335388670304929 : 720879D38CDF88F4
PRP: Verified
PRP without proof (not generated)
2017-10-24kkmrkkblmbrbkC-PRP
M6305939/9660335388670304929 : 720879D38CDF88F4
PRP: Verified
PRP without proof (not generated)
2014-08-17NesowaF
Factor: 9660335388670304929 / TF: 63-64
2011-06-12markrNF-PM1
B1=160000, B2=3480000, E=6