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
2596213Factored
FactorDigitsBitsDate
5310179764317172865032168.82021-03-04 23:01:58
ECM
DigitsB1Curves
2550000101 / 280
Estimated T-Level: 21.8 ⓘ
TF below 2^67 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-02-12Robert R. Fenichel30C72286EA0CB30E0
Verified (Factored)1999-04-02Caleb Carroll30C72286EA0CB30E253530
Verified (Factored)2018-06-24kkmrkkblmbrbk30C72286EA0CB30E420595
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-03-05mrh849F40B77A52524E170799853
History
DateUserTypeResult
2021-03-05curtiscCERT
PRP Certification
Proof certified good
2021-03-05mrhC-PRP
M2596213/531017976431717286503 : 849F40B77A52524E
PRP proof power = 7
PRP: Verified
Proof certified good
2021-03-04mnd9F-ECM
Factor: 531017976431717286503 / (ECM curve 5, B1=50000, B2=5000000, Sigma=55886127460085)
2019-04-01TJAOINF
no factor from 2^67 to 2^68
2018-06-24kkmrkkblmbrbkC-LL
30C72286EA0CB30E
2017-08-21Gordon SpenceNF
no factor from 2^66 to 2^67
2016-08-22mikrNF-PM1
B1=3200000, B2=112000000, E=12
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-11-06ramgeisNF
no factor from 2^65 to 2^66
2015-02-27VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-27VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-14dbaughNF
no factor from 2^62 to 2^63
2012-06-23Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-04-15James HeinrichNF-PM1
B1=175000, B2=4156250, E=6
2011-01-15JossNF-PM1
B1=50000
2010-11-16JossNF-PM1
B1=20000
2009-01-31Sturle SundeNF
no factor from 2^60 to 2^61