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
4894999Factored
FactorDigitsBitsDate
6108771088895119620792169.02018-06-04 18:00:28
ECM
DigitsB1Curves
25500009 / 280
Estimated T-Level: 20.2 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-06-29Yuri Sorkin85F3EF7A3D7962710
Verified (Factored)2000-09-29Alastair Knox85F3EF7A3D7962714241722
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2018-06-06Martin Russell83F9ADA6D3AE5BEE197708453
Verified2018-06-10Oliver Kruse83F9ADA6D3AE5BEE1324971853
History
DateUserTypeResult
2018-06-10Oliver KruseC-PRP
M4894999/610877108889511962079 : 83F9ADA6D3AE5BEE
PRP: Verified
PRP without proof (not generated)
2018-06-06Martin RussellC-PRP
M4894999/610877108889511962079 : 83F9ADA6D3AE5BEE
PRP: Verified
PRP without proof (not generated)
2018-06-04YxinityF
Factor: 610877108889511962079 / TF: 69-70
2018-06-04YxinityNF
no factor from 2^68 to 2^69
2018-05-08ramgeisNF
no factor from 2^67 to 2^68
2017-10-31YxinityNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-07-23snme2pm1NF
no factor from 2^65 to 2^66
2015-01-07VictordeHollanderNF
no factor from 2^64 to 2^65
2015-01-07VictordeHollanderNF
no factor from 2^63 to 2^64
2014-01-13David CampeauNF-PM1
B1=420000, B2=10920000, E=12
2011-10-09GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-04-12markrNF
no factor from 2^61 to 2^62
2009-08-19Carsten KossendeyNF-PM1
B1=30000, B2=435000