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
360869Factored
FactorDigitsBitsDate
512332918115151134900116844023931102.02019-04-04 11:14:33
ECM
DigitsB1Curves
2550000280 / 280
30250000328 / 640
Estimated T-Level: 27.6 ⓘ
TF below 2^87 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski39040
Verified (Factored)Brad Corbin3B57E08F03A779040
Verified (Factored)Klaus Kastens3B57E08F03A779040
Verified (Factored)Eivind Triel3B57E08F03A77904254407
Verified (Factored)2016-06-01MadPoo3B57E08F03A7790464827
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2019-04-05matzetoni2553258AE28849FB112531153
Verified2019-04-05artorollo2553258AE28849FB129231353
History
DateUserTypeResult
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2019-04-05artorolloC-PRP
M360869/5123329181151511349001168440239 : 2553258AE28849FB
PRP: Verified
PRP without proof (small exponent)
2019-04-05matzetoniC-PRP
M360869/5123329181151511349001168440239 : 2553258AE28849FB
PRP: Verified
PRP without proof (small exponent)
2019-04-04alexF-ECM
Factor: 5123329181151511349001168440239 / (ECM curve 78, B1=250000, B2=25000000, Sigma=6292726669239063)
2018-02-22Gordon SpenceNF
no factor from 2^64 to 2^65
2018-02-14BloodERazorNF
no factor from 2^64 to 2^65
2016-11-22mikrNF-PM1
B1=60000000, B2=3000000000, E=12
2016-06-01MadPooC-LL
3B57E08F03A77904
2015-12-21Gordon SpenceNF
no factor from 2^63 to 2^64
2015-12-21Gordon SpenceNF
no factor from 2^62 to 2^63
2015-07-26NRNF
no factor from 2^61 to 2^62
2013-05-13lycornNF
no factor from 2^60 to 2^61
2012-03-05alpertronNF-PM1
B1=10000000, B2=200000000, E=12
2011-08-14JossNF-PM1
B1=1245576
2009-01-26Sturle SundeNF
no factor from 2^59 to 2^60
2008-12-29Sturle SundeNF
no factor from 2^58 to 2^59