Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
95633Factored
FactorDigitsBitsDate
4552508988515787682133670776830235435938125.12022-08-16 09:06:05
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000001362 / 4588
Estimated T-Level: 36.5 ⓘ
TF below 2^116 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Unknown564A0
Verified (Factored)Charles F. Kerchner IIIEDED359E6B4FD64A0
Verified (Factored)Brian J. BeesleyEDED359E6B4FD64A0
Verified (Factored)2015-04-11MadPooEDED359E6B4FD64A76165
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-08-16George Woltman4703173C950AC9CA17045753
Verified2022-08-16LordJulius4703173C950AC9CA13820753
P-1 factors
DateFactorB1B2
2022-08-16455250898851578768213367077683023543593000000000237537727477050
History
DateUserTypeResult
2022-08-16LordJuliusC-PRP
M95633/45525089885157876821336707768302354359 : 4703173C950AC9CA
PRP: Verified
PRP without proof (small exponent)
2022-08-16George WoltmanC-PRP
M95633/45525089885157876821336707768302354359 : 4703173C950AC9CA
PRP: Verified
PRP without proof (small exponent)
2022-08-16George WoltmanF-PM1
Factor: 45525089885157876821336707768302354359 / (P-1, B1=3000000000, B2=237537727477050)
2021-11-13lycornNF-PP1
Start=6/5, B1=200000000, B2=18200000000
2021-11-13lycornNF-PP1
Start=2/7, B1=200000000, B2=18200000000
2020-04-07YxinityNF
no factor from 2^65 to 2^66
2020-04-07YxinityNF
no factor from 2^65 to 2^66
2018-08-24YxinityNF
no factor from 2^64 to 2^65
2018-08-24YxinityNF
no factor from 2^64 to 2^65
2017-02-25snme2pm1NF
no factor from 2^63 to 2^64
2016-06-07snme2pm1NF
no factor from 2^62 to 2^63
2016-02-23LaurVNF
no factor from 2^58 to 2^59
2016-02-23LaurVNF
no factor from 2^57 to 2^58
2015-04-11MadPooC-LL
EDED359E6B4FD64A
2014-10-31Sid & AndyNF
no factor from 2^61 to 2^62
2013-10-19lycornNF
no factor from 2^60 to 2^61
2012-08-22LaurVNF-PM1
B1=100000000, B2=2000000000, E=12
2009-01-10Sturle SundeNF
no factor from 2^59 to 2^60