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

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MnStatusDetails
10187209Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
242868295027968497649532374.42024-03-08 00:33:26
ECM
DigitsB1Curves
255000050 / 280
Estimated T-Level: 20.9 ⓘ
TF below 2^64 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2000-06-11Eric Bravick32212BCA99B21F97968446
Verified (Factored)2003-10-08Otto Bruggeman32212BCA99B21F975006353
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2024-03-13Perig6A62935ECBD97AE11232500253
P-1 factors
DateFactorB1B2
2024-03-082428682950279684976495320000002710242150
History
DateUserTypeResult
2024-03-14Chun sung sooCERT
PRP Certification
Proof certified good
2024-03-13PerigC-PRP
M10187209/24286829502796849764953 : 6A62935ECBD97AE1
PRP proof power = 8
PRP: Verified
Proof certified good
2024-03-08Sid & AndyF-PM1
Factor: 24286829502796849764953 / (P-1, B1=2000000, B2=2710242150)
2022-02-17USAFSSNF-PM1
B1=555000, B2=33369000
2021-05-02-Anonymous-NF
no factor from 2^71 to 2^72
2021-05-02-Anonymous-NF
no factor from 2^70 to 2^71
2020-07-27ViliamFNF
no factor from 2^69 to 2^70
2017-10-24ramgeisNF
no factor from 2^68 to 2^69
2017-09-26-Anonymous-NF
no factor from 2^67 to 2^68
2015-11-23VictordeHollanderNF
no factor from 2^66 to 2^67
2015-04-25ThaNF
no factor from 2^65 to 2^66
2013-08-19NesowaNF
no factor from 2^64 to 2^65
2013-04-22NesowaNF-PM1
B1=125000, B2=2468750, E=6