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

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MnStatusDetails
3444443Factored
FactorDigitsBitsDate
9643591011689196412666679832789.62016-11-04 08:20:00
ECM
DigitsB1Curves
2550000276 / 280
Estimated T-Level: 24.9
TF below 2^78 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)John LloydB8B8F19AB10E38970
Verified (Factored)1999-07-12Stephan GruppB8B8F19AB10E38972121286
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-11-06kkmrkkblmbrbk93B6589F4D9ED9591128423053
Verified2017-11-22Oliver Kruse93B6589F4D9ED9591203687953
History
DateUserTypeResult
2022-09-03JossNF-PM1
B1=1333332, B2=213444000
2022-01-06JossNF-PM1
B1=1333332, B2=111642300
2021-04-10JossNF
no factor from 2^67 to 2^68
2020-09-15JossNF-PM1
B1=344444, B2=6888886, E=6
2020-06-01JossNF-PM1
B1=344444, B2=3444443, E=6
2017-11-22Oliver KruseC-PRP
M3444443/964359101168919641266667983 : 93B6589F4D9ED959
PRP: Verified
PRP without proof (not generated)
2017-11-06kkmrkkblmbrbkC-PRP
M3444443/964359101168919641266667983 : 93B6589F4D9ED959
PRP: Verified
PRP without proof (not generated)
2016-11-04mikrF-ECM
Factor: 964359101168919641266667983 / (ECM curve 246, B1=50000, B2=5000000)
2016-02-23Mark RoseNF
no factor from 2^1 to 2^62
2016-01-08ramgeisNF
no factor from 2^70 to 2^71
2014-04-07ramgeisNF
no factor from 2^69 to 2^70
2014-04-07ramgeisNF
no factor from 2^68 to 2^69
2014-04-07ramgeisNF
no factor from 2^67 to 2^68
2014-04-07ramgeisNF
no factor from 2^66 to 2^67
2012-03-12Richard B. WoodsNF
no factor from 2^65 to 2^66
2012-02-15Richard B. WoodsNF
no factor from 2^64 to 2^65
2011-09-15Richard B. WoodsNF
no factor from 2^63 to 2^64
2011-08-27Richard B. WoodsNF
no factor from 2^62 to 2^63
2011-04-12Never Odd Or EvenNF-PM1
B1=30000000, B2=200000000, E=12
2011-04-07Never Odd Or EvenNF-PM1
B1=30000000
2011-04-07Never Odd Or EvenNF-PM1
B1=26250000
2011-04-06Never Odd Or EvenNF-PM1
B1=15000000
2011-04-03Never Odd Or EvenNF-PM1
B1=10000000
2011-04-02Never Odd Or EvenNF-PM1
B1=1000000
2011-04-01Never Odd Or EvenNF-PM1
B1=700000
2011-03-31Never Odd Or EvenNF-PM1
B1=380000
2011-03-31Never Odd Or EvenNF-PM1
B1=250000
2011-03-31Never Odd Or EvenNF-PM1
B1=100000