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
14022377Factored
FactorDigitsBitsDate
315709406347411006645672374.72021-08-24 01:16:32
ECM
DigitsB1Curves
25500007 / 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)2002-10-07Ernst W. Mayer6BB9C1DB284A4A861320887
Verified (Factored)2005-06-19Ars Technica Team Prime Rib6BB9C1DB284A4A862982957
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-12-10Funky Waddle395CB5B78AA5C4E21954562353
History
DateUserTypeResult
2022-12-10aperson1CERT
PRP Certification
Proof certified good
2022-12-10Funky WaddleC-PRP
M14022377/31570940634741100664567 : 395CB5B78AA5C4E2
PRP proof power = 8
PRP: Verified
Proof certified good
2021-08-24masserF-PP1
Start=2/7, B1=1000000, Factor: 31570940634741100664567
2021-05-07masserNF-PM1
B1=8000000, B2=320000000
2020-12-18masserNF
no factor from 2^71 to 2^72
2020-12-02masserNF-PM1
B1=550000, B2=12650000, e=12
2020-10-11masserNF
no factor from 2^70 to 2^71
2020-04-24masserNF
no factor from 2^69 to 2^70
2018-02-05ramgeisNF
no factor from 2^68 to 2^69
2018-02-05ramgeisNF
no factor from 2^67 to 2^68
2017-04-07ThaNF-PM1
B1=300000, B2=6000000, E=12
2015-08-19ThaNF
no factor from 2^66 to 2^67
2014-07-22NesowaNF
no factor from 2^65 to 2^66