Marin Mersenne 2^P-1
Username
Password
Forgot password?
Black
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
304211Factored
FactorDigitsBitsDate
608423619.2old
326868635291134.92008-07-21 09:16:19
69290218564871342.72008-07-21 09:16:19
241515563048101295409582732684.32015-11-06 13:40:27
1163699225929221026196661912786.62021-11-11 20:25:56
ECM
DigitsB1Curves
2550000280 / 280
30250000435 / 640
Estimated T-Level: 28.4 ⓘ
TF below 2^89 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-09-22Oliver KruseCE1F2E284B5BDF0C4013
Verified (Factored)2017-10-12Oliver KruseCE1F2E284B5BDF0C44318813
Verified (Factored)2017-12-11ATHCE1F2E284B5BDF0C412228213
Verified (Factored)2020-04-18Oliver Kruse0B991CBE8E471204413946453
Verified2021-11-11mikr0B991CBE8E471204512358653
Verified (Factored)2022-05-12Jorge Coveiro0B991CBE8E471204112891653
History
DateUserTypeResult
2024-02-23Denial140NF-PM1
B1=10000000, B2=206662045590
2024-02-22Denial140NF-PM1
B1=10000000
2023-03-17Denial140NF-PM1
B1=1000000, B2=65871826020
2022-05-12Jorge CoveiroC-PRP
M304211/608423 : 0B991CBE8E471204
PRP proof power = 5
PRP: Verified (Factored)
PRP proof never uploaded
2022-02-06Lisander ViaeneNF-PM1
B1=50000
2021-11-12Simon JosefssonCERT
PRP Certification
Proof certified good
2021-11-11mikrC-PRP
M304211/608423/32686863529/6929021856487/24151556304810129540958273/116369922592922102619666191 : 0B991CBE8E471204
PRP proof power = 5
PRP: Verified
Proof certified good
2021-11-11nordiF-ECM
Factor: 116369922592922102619666191 / (ECM curve 89, B1=250000, B2=36750000, Sigma=3447341434191616)
2021-04-30nordiNF-PP1
Start=6/5, B1=10000000, B2=1010000000
2021-04-24nordiNF-PP1
Start=2/7, B1=10000000, B2=1010000000
2020-04-18Oliver KruseC-PRP
M304211/608423/32686863529/6929021856487/24151556304810129540958273 : 0B991CBE8E471204
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-12-11ATHC-PRP
M304211/608423/32686863529/6929021856487/24151556304810129540958273 : CE1F2E284B5BDF0C
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-10-12Oliver KruseC-PRP
M304211/608423/32686863529/6929021856487/24151556304810129540958273 : CE1F2E284B5BDF0C
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M304211/known_factors : CE1F2E284B5BDF0C
PRP without proof (not generated)
2015-11-06TJAOIF-ECM
Factor: 24151556304810129540958273 / (ECM curve 71, B1=50000, B2=5000000)
2008-07-21J FeitsmaF
Factor: 6929021856487
2008-07-21J FeitsmaF
Factor: 32686863529