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

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Exponent Range:










MnStatusDetails
101293Factored
FactorDigitsBitsDate
63981779990556172447057132582.42008-05-23 19:05:54
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000271 / 1566
Estimated T-Level: 30.9 ⓘ
TF below 2^98 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Unknown1A080
Verified (Factored)Charles F. Kerchner III31FE4C0CD9E69A080
Verified (Factored)Brian J. Beesley31FE4C0CD9E69A080
Verified (Factored)Eivind Triel31FE4C0CD9E69A0864075
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-21Oliver Kruse486B9255FFC648441013
Verified2017-09-22Oliver Kruse486B9255FFC648441013
Verified2017-11-06kkmrkkblmbrbk486B9255FFC6484412988013
Verified2020-04-17Oliver KruseC82982F4D56418E611060953
Verified2022-04-15LordJuliusC82982F4D56418E614797853
History
DateUserTypeResult
2022-04-15LordJuliusC-PRP
M101293/6398177999055617244705713 : C82982F4D56418E6
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
2022-04-13LordJuliusNF
no factor from 2^1 to 2^57
2021-12-22Seth_TrNF-PM1
B1=1000000000, B2=6735532633830
2020-04-17Oliver KruseC-PRP
M101293/6398177999055617244705713 : C82982F4D56418E6
PRP: Verified
PRP without proof (small exponent)
2018-11-02J.R. AllenNF
no factor from 2^59 to 2^60
2018-11-02J.R. AllenNF
no factor from 2^58 to 2^59
2018-11-02J.R. AllenNF
no factor from 2^57 to 2^58
2018-10-25J.R. AllenNF
no factor from 2^52 to 2^57
2017-11-06kkmrkkblmbrbkC-PRP
M101293/6398177999055617244705713 : 486B9255FFC64844
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M101293/6398177999055617244705713 : 486B9255FFC64844
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M101293/6398177999055617244705713 : 486B9255FFC64844
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M101293/6398177999055617244705713 : 486B9255FFC64844
PRP without proof (not generated)
2016-11-02kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2008-05-23George WoltmanF-ECM
Factor: 6398177999055617244705713