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
10436197Factored
FactorDigitsBitsDate
62617183825.9old
50093745611032.22008-09-08 06:33:49
42408089552186062804812271.82020-07-02 03:20:23
1072364345310583040522092476.52021-05-21 20:00:45
309617142334343467545681637212994.62021-05-22 19:00:12
ECM
DigitsB1Curves
255000053 / 280
Estimated T-Level: 20.9 ⓘ
TF below 2^65 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2020-06-29riccardo uberti446F3A9C8182E6FD2472706853
Verified (Factored)2020-07-05fre_games446F3A9C8182E6FD3307113653
Verified2021-05-22tottenhoff446F3A9C8182E6FD473409453
Verified2021-05-23riccardo uberti446F3A9C8182E6FD5829321253
P-1 factors
DateFactorB1B2
2020-07-0242408089552186062804815000000
2021-05-2444166512119652550314535917821915998125699255756873403655228266909458400569677750088264401675000000480000000
History
DateUserTypeResult
2022-11-08LordJuliusNF
no factor from 2^68 to 2^69
2022-11-08LordJuliusNF
no factor from 2^67 to 2^68
2022-11-08LordJuliusNF
no factor from 2^66 to 2^67
2022-11-08LordJuliusNF
no factor from 2^65 to 2^66
2022-11-08LordJuliusNF
no factor from 2^64 to 2^65
2021-05-25Ge yongCERT
PRP Certification
Proof certified good
2021-05-24ThaF-PM1
Factor: 4416651211965255031453591782191599812569925575687340365522826690945840056967775008826440167 / (P-1, B1=5000000, B2=480000000)
2021-05-23riccardo ubertiC-PRP
M10436197/62617183/5009374561/4240808955218606280481/107236434531058304052209/30961714233434346754568163721 : 446F3A9C8182E6FD
PRP proof power = 8
PRP: Verified
Proof certified good
2021-05-23riccardo ubertiNF-PP1
Start=6/5, B1=1500000, B2=40000000
2021-05-22curtiscCERT
PRP Certification
Proof certified good
2021-05-22riccardo ubertiF-PP1
Start=2/7, B1=1500000, B2=40000000, Factor: 30961714233434346754568163721
2021-05-22tottenhoffC-PRP
M10436197/62617183/5009374561/4240808955218606280481/107236434531058304052209 : 446F3A9C8182E6FD
PRP proof power = 8
PRP: Verified
Proof certified good
2021-05-21riccardo ubertiF-PP1
Start=6/5, B1=750000, Factor: 107236434531058304052209
2020-07-05fre_gamesC-PRP
M10436197/62617183/5009374561/4240808955218606280481 : 446F3A9C8182E6FD
PRP: Verified (Factored)
PRP without proof (not generated)
2020-07-02riccardo ubertiF-PM1
Factor: 4240808955218606280481 / (P-1, B1=500000)
2020-06-29riccardo ubertiC-PRP
M10436197/62617183/5009374561 : 446F3A9C8182E6FD
PRP: Verified (Factored)
PRP without proof (not generated)
2008-09-08Will EdgingtonF
Factor: 5009374561