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

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MnStatusDetails
100517Factored
FactorDigitsBitsDate
9994590331641911549.8old
37616964324490359217286600892891.62017-01-21 19:41:58
11724563177498332277188389320626333106.52017-01-21 18:00:19
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000274 / 1566
Estimated T-Level: 30.9
TF below 2^98 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse31BFF45DAD69AB453013
Verified2017-10-09Chang Chia-Tche31BFF45DAD69AB453013
Verified2017-10-13kkmrkkblmbrbk31BFF45DAD69AB4531204113
Verified2020-04-17Oliver KruseEA5300A8D05B818539574353
Verified2022-04-15LordJuliusEA5300A8D05B818532952253
History
DateUserTypeResult
2022-10-22LordJuliusNF
no factor from 2^66 to 2^67
2022-10-22LordJuliusNF
no factor from 2^65 to 2^66
2022-10-22LordJuliusNF
no factor from 2^64 to 2^65
2022-10-22LordJuliusNF
no factor from 2^63 to 2^64
2022-10-22LordJuliusNF
no factor from 2^62 to 2^63
2022-04-15LordJuliusC-PRP
M100517/999459033164191/3761696432449035921728660089/117245631774983322771883893206263 : EA5300A8D05B8185
PRP: Verified
PRP without proof (small exponent)
2022-04-13LordJuliusNF
no factor from 2^61 to 2^62
2022-04-13LordJuliusNF
no factor from 2^60 to 2^61
2022-04-13LordJuliusNF
no factor from 2^59 to 2^60
2022-04-13LordJuliusNF
no factor from 2^58 to 2^59
2022-04-13LordJuliusNF
no factor from 2^57 to 2^58
2021-12-17Seth_TrNF-PM1
B1=1000000000, B2=6551302697940
2020-04-17Oliver KruseC-PRP
M100517/999459033164191/3761696432449035921728660089/117245631774983322771883893206263 : EA5300A8D05B8185
PRP: Verified
PRP without proof (small exponent)
2018-11-01J.R. AllenNF
no factor from 2^59 to 2^60
2018-11-01J.R. AllenNF
no factor from 2^58 to 2^59
2018-11-01J.R. AllenNF
no factor from 2^57 to 2^58
2018-10-25J.R. AllenNF
no factor from 2^52 to 2^57
2017-10-13kkmrkkblmbrbkC-PRP
M100517/999459033164191/3761696432449035921728660089/117245631774983322771883893206263 : 31BFF45DAD69AB45
PRP: Verified
PRP without proof (not generated)
2017-10-09Chang Chia-TcheC-PRP
M100517/known_factors : 31BFF45DAD69AB45
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M100517/999459033164191/117245631774983322771883893206263/3761696432449035921728660089 : 31BFF45DAD69AB45
PRP without proof (not generated)
2017-01-21kkmrkkblmbrbkF-ECM
Factor: 3761696432449035921728660089 / (ECM curve 59, B1=250000, B2=25000000)
2017-01-21kkmrkkblmbrbkF-ECM
Factor: 117245631774983322771883893206263 / (ECM curve 204, B1=250000, B2=25000000)
2016-10-31kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12