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
8597143Factored
FactorDigitsBitsDate
1498072030558086076380703682765773735113.52022-01-18 16:26:06
ECM
DigitsB1Curves
25500006 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2001-05-20Earl MalmroseF04AA960D47071337706035
Verified (Factored)2002-11-16Kevin LudlowF04AA960D47071332939903
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-01-25Massimo Cappelli (ik5pwa)58FE46F60F6394B91458594053
P-1 factors
DateFactorB1B2
2022-01-18149807203055808607638070368276577371560000627605550
History
DateUserTypeResult
2022-01-25curtiscCERT
PRP Certification
Proof certified good
2022-01-25Massimo Cappelli (ik5pwa)C-PRP
M8597143/14980720305580860763807036827657737 : 58FE46F60F6394B9
PRP proof power = 8
PRP: Verified
Proof certified good
2022-01-18firejugglerF-PM1
Factor: 14980720305580860763807036827657737 / (P-1, B1=1560000, B2=627605550)
2021-10-05SRBaseNF
no factor from 2^71 to 2^72
2021-08-27SRBaseNF
no factor from 2^70 to 2^71
2021-08-20SRBaseNF
no factor from 2^69 to 2^70
2019-11-29TJAOINF
no factor from 2^68 to 2^69
2018-04-05monstNF
no factor from 2^67 to 2^68
2016-01-29snme2pm1NF
no factor from 2^66 to 2^67
2015-05-25VictordeHollanderNF
no factor from 2^65 to 2^66
2013-11-03David CampeauNF
no factor from 2^64 to 2^65
2012-11-03NesowaNF-PM1
B1=100000, B2=1825000, E=6