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
4961707Factored
FactorDigitsBitsDate
790434743824928679888882232686.02022-05-16 13:23:43
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)1998-08-16Marco MantovanelliB5589A83ED2B7D560
Verified (Factored)2001-08-18Wally HessB5589A83ED2B7D562861947
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-05-22-Anonymous-6D984E90F55F0E3A1470283953
P-1 factors
DateFactorB1B2
2022-05-167904347438249286798888822350000000160135168050
History
DateUserTypeResult
2022-05-22carldsCERT
PRP Certification
Proof certified good
2022-05-22-Anonymous-C-PRP
M4961707/79043474382492867988888223 : 6D984E90F55F0E3A
PRP proof power = 7
PRP: Verified
Proof certified good
2022-05-16Denial140F-PM1
Factor: 79043474382492867988888223 / (P-1, B1=50000000, B2=160135168050)
2022-04-17Denial140NF
no factor from 2^72 to 2^73
2021-04-26-Anonymous-NF
no factor from 2^71 to 2^72
2021-04-24-Anonymous-NF
no factor from 2^70 to 2^71
2021-04-23-Anonymous-NF
no factor from 2^69 to 2^70
2021-04-05TJAOINF
no factor from 2^68 to 2^69
2018-06-05ramgeisNF
no factor from 2^67 to 2^68
2017-10-26YxinityNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-07-29snme2pm1NF
no factor from 2^65 to 2^66
2015-04-03mikrNF-PM1
B1=1200000, B2=43100000, E=12
2014-12-29VictordeHollanderNF
no factor from 2^64 to 2^65
2014-12-29VictordeHollanderNF
no factor from 2^63 to 2^64
2011-11-13GrunwalderGIMPNF
no factor from 2^1 to 2^63
2011-07-25Squeeky_SquirrelNF-PM1
B1=60000, B2=975000, E=6
2009-12-20markrNF
no factor from 2^61 to 2^62
2009-09-03Carsten KossendeyNF-PM1
B1=30000, B2=435000