Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
11981Factored
FactorDigitsBitsDate
4097503722.0old
13011367823.62008-08-26 19:58:35
319478324081901184872064.82008-08-29 02:24:28
12911688253437008468646663832890.12008-11-22 12:25:27
302108831228930467458764813442186023337121.22022-06-22 14:59:17
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001251 / 9201
Estimated T-Level: 40.7 ⓘ
TF below 2^130 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-09-21Oliver Kruse24BE36751DD82D5A4013
Verified (Factored)2017-10-02kkmrkkblmbrbk24BE36751DD82D5A4013
Verified (Factored)2017-12-07ATH24BE36751DD82D5A4918213
Verified (Factored)2020-04-17Oliver Kruse63B0E7B384F997CE41020053
Verified2022-06-22aperson163B0E7B384F997CE5538453
History
DateUserTypeResult
2023-04-06-Anonymous-NF-PM1
B1=100000000000, B2=122192573512709700
2022-06-22aperson1C-PRP
M11981/4097503/13011367/31947832408190118487/1291168825343700846864666383/3021088312289304674587648134421860233 : 63B0E7B384F997CE
PRP: Verified
PRP without proof (small exponent)
2022-06-22James HintzF-ECM
Factor: 3021088312289304674587648134421860233 / (ECM curve 1334, B1=3000000, B2=300000000, Sigma=950656630356138)
2020-04-17Oliver KruseC-PRP
M11981/4097503/13011367/31947832408190118487/1291168825343700846864666383 : 63B0E7B384F997CE
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M11981/4097503/13011367/31947832408190118487/1291168825343700846864666383 : 24BE36751DD82D5A
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M11981/4097503/13011367/31947832408190118487/1291168825343700846864666383 : 24BE36751DD82D5A
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M11981/4097503/13011367/31947832408190118487/1291168825343700846864666383 : 24BE36751DD82D5A
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M11981/4097503/13011367/31947832408190118487/1291168825343700846864666383 : 24BE36751DD82D5A
PRP without proof (not generated)
2016-09-07kkmrkkblmbrbkNF-PM1
B1=100000000, B2=10000000000, E=12
2008-11-22-Anonymous-F-ECM
Factor: 1291168825343700846864666383
2008-08-29-Anonymous-F-ECM
Factor: 31947832408190118487
2008-08-26-Anonymous-F
Factor: 13011367