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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
2460187Factored
FactorDigitsBitsDate
18076002634055845051853272580.62021-08-19 19:11:38
ECM
DigitsB1Curves
2550000146 / 280
Estimated T-Level: 22.6 ⓘ
TF below 2^70 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Christian VassardDF543E483085D0920
Verified (Factored)1999-05-16Adam DorobisDF543E483085D0922297294
Verified (Factored)2018-05-26kkmrkkblmbrbkDF543E483085D092803986
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-08-19SRJ2877B28EC8F90C92030B167099953
History
DateUserTypeResult
2021-08-19arnaudCERT
PRP Certification
Proof certified good
2021-08-19SRJ2877C-PRP
M2460187/1807600263405584505185327 : B28EC8F90C92030B
PRP proof power = 7
PRP: Verified
Proof certified good
2021-08-19daveward2005F-ECM
Factor: 1807600263405584505185327 / (ECM curve 7, B1=50000, B2=5000000, Sigma=5690407886359341)
2021-07-26TJAOINF
no factor from 2^68 to 2^69
2019-07-01TJAOINF
no factor from 2^67 to 2^68
2018-05-26kkmrkkblmbrbkC-LL
DF543E483085D092
2017-07-15Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-10-26ramgeisNF
no factor from 2^65 to 2^66
2015-03-03VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-03VictordeHollanderNF
no factor from 2^63 to 2^64
2014-10-09mikrNF-PM1
B1=2382500, B2=85770100, E=12
2014-09-02JossNF-PM1
B1=121089
2013-12-04Jerry HallettNF
no factor from 2^62 to 2^63
2012-06-07Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-01-20Oscar ÖstlinNF-PM1
B1=95000, B2=1947500, E=6
2010-12-22JossNF-PM1
B1=20000
2009-01-12Sturle SundeNF
no factor from 2^60 to 2^61