Marin Mersenne 2^P-1
Username
Password
Forgot password?
Black
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
100741Factored
FactorDigitsBitsDate
89073576552369673959527292582.92009-03-22 09:22:51
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.
LL
StatusDateUserResidueShift
Verified (Factored)Unknown7B180
Verified (Factored)Robert Clark56A9D344FA1DFB180
Verified (Factored)Brian J. Beesley56A9D344FA1DFB180
Verified (Factored)Eivind Triel56A9D344FA1DFB1889923
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-21Oliver Kruse71D0D3DBB5C9E8851013
Verified2017-09-22Oliver Kruse71D0D3DBB5C9E8851013
Verified2017-11-06kkmrkkblmbrbk71D0D3DBB5C9E88518619213
Verified2020-04-17Oliver KruseCD268B2C69AC188B12040353
Verified2022-04-15LordJuliusCD268B2C69AC188B19674153
History
DateUserTypeResult
2022-10-24LordJuliusNF
no factor from 2^66 to 2^67
2022-10-24LordJuliusNF
no factor from 2^65 to 2^66
2022-10-24LordJuliusNF
no factor from 2^64 to 2^65
2022-10-24LordJuliusNF
no factor from 2^63 to 2^64
2022-10-24LordJuliusNF
no factor from 2^62 to 2^63
2022-04-15LordJuliusC-PRP
M100741/8907357655236967395952729 : CD268B2C69AC188B
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 2^1 to 2^57
2022-03-07LordJuliusNF
no factor from 2^57 to 2^58
2021-12-17Seth_TrNF-PM1
B1=1000000000, B2=6547509398430
2020-04-17Oliver KruseC-PRP
M100741/8907357655236967395952729 : CD268B2C69AC188B
PRP: Verified
PRP without proof (small exponent)
2018-10-25J.R. AllenNF
no factor from 2^52 to 2^57
2017-11-06kkmrkkblmbrbkC-PRP
M100741/8907357655236967395952729 : 71D0D3DBB5C9E885
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M100741/8907357655236967395952729 : 71D0D3DBB5C9E885
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M100741/8907357655236967395952729 : 71D0D3DBB5C9E885
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M100741/8907357655236967395952729 : 71D0D3DBB5C9E885
PRP without proof (not generated)
2016-10-31kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2009-03-22eteoF-ECM
Factor: 8907357655236967395952729
2009-01-24Sturle SundeNF
no factor from 2^59 to 2^60
2009-01-05Sturle SundeNF
no factor from 2^58 to 2^59