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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
14040473Factored
FactorDigitsBitsDate
350766745116150597542572374.92021-07-31 12:36:59
ECM
DigitsB1Curves
255000033 / 280
Estimated T-Level: 20.6 ⓘ
TF below 2^63 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2002-01-08Steve SpicerA712F8259232A9CA6457334
Verified (Factored)2005-11-13Stephen SellarsA712F8259232A9CA1232617
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-12-14Naegi Makoto1DC179C7657E3DA21590957653
History
DateUserTypeResult
2022-12-14curtiscCERT
PRP Certification
Proof certified good
2022-12-14Naegi MakotoC-PRP
M14040473/35076674511615059754257 : 1DC179C7657E3DA2
PRP proof power = 8
PRP: Verified
Proof certified good
2021-07-31masserF-PP1
Start=2/7, B1=1680000, B2=104160000, Factor: 35076674511615059754257
2021-06-28masserNF-PM1
B1=3200000, B2=259200000
2021-04-04masserNF
no factor from 2^71 to 2^72
2020-10-14masserNF-PM1
B1=500000, B2=10000000, e=2
2020-07-15masserNF
no factor from 2^70 to 2^71
2020-05-07masserNF
no factor from 2^69 to 2^70
2018-03-04ramgeisNF
no factor from 2^68 to 2^69
2018-03-04ramgeisNF
no factor from 2^67 to 2^68
2015-08-20ThaNF
no factor from 2^66 to 2^67
2014-07-22NesowaNF
no factor from 2^65 to 2^66