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

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MnStatusDetails
3686153Factored
FactorDigitsBitsDate
1030811315118003005112166.52009-08-25 05:32:49
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
BadRoss Miller76A60A5E28D3110D0
Verified (Factored)1998-04-27Joel Armengaud6B47D1A9DD49BEC80
Bad1999-08-16Willamette Mathematics341592145F5504FA339825
Verified (Factored)1999-11-04Steve Graham6B47D1A9DD49BEC8143050
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-20kkmrkkblmbrbkA1F1C54ABCCA6B861013
Verified2017-11-29Oliver KruseA1F1C54ABCCA6B861314520213
History
DateUserTypeResult
2022-12-09LordJuliusNF
no factor from 2^67 to 2^68
2022-12-09LordJuliusNF
no factor from 2^65 to 2^66
2022-12-09LordJuliusNF
no factor from 2^64 to 2^65
2022-12-09LordJuliusNF
no factor from 2^63 to 2^64
2022-12-09LordJuliusNF
no factor from 2^62 to 2^63
2022-12-09LordJuliusNF
no factor from 2^1 to 2^62
2022-05-25JossNF-PM1
B1=100000, B2=130364850
2022-03-22JossNF-PM1
B1=100000
2022-03-05JossNF-PM1
B1=90000
2017-11-29Oliver KruseC-PRP
M3686153/103081131511800300511 : A1F1C54ABCCA6B86
PRP: Verified
PRP without proof (not generated)
2017-09-20kkmrkkblmbrbkC-PRP
M3686153/103081131511800300511 : A1F1C54ABCCA6B86
PRP: Verified
PRP without proof (not generated)
2009-08-25LordJuliusF-ECM
Factor: 103081131511800300511
2009-07-13Carsten KossendeyNF-PM1
B1=20000, B2=260000
2009-03-08S485122NF
no factor from 2^60 to 2^61