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
304883Factored
FactorDigitsBitsDate
135614736164207719132063.62007-08-21 13:27:17
ECM
DigitsB1Curves
2550000280 / 280
30250000436 / 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
Verified2017-09-24Oliver KruseB384B9A26E9B829A1013
Verified2017-10-12Oliver KruseB384B9A26E9B829A129565913
Verified2017-12-11ATHB384B9A26E9B829A130328513
Unverified (Reliable)2020-04-18Oliver Kruse056C163A441BEA__118458353
History
DateUserTypeResult
2024-02-23Denial140NF-PM1
B1=10000000, B2=206662045590
2024-02-22Denial140NF-PM1
B1=10000000
2023-03-22Denial140NF-PM1
B1=1000000, B2=65871826020
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2021-05-01nordiNF-PP1
Start=6/5, B1=10000000, B2=1010000000
2021-04-23nordiNF-PP1
Start=2/7, B1=10000000, B2=1010000000
2020-04-18Oliver KruseC-PRP
M304883/13561473616420771913 : 056C163A441BEA__
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-12-11ATHC-PRP
M304883/13561473616420771913 : B384B9A26E9B829A
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-10-12Oliver KruseC-PRP
M304883/13561473616420771913 : B384B9A26E9B829A
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-09-24Oliver KruseC-PRP
M304883/13561473616420771913 : B384B9A26E9B829A
PRP: Unverified (Reliable)
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M304883/13561473616420771913 : B384B9A26E9B829A
PRP without proof (not generated)
2007-08-21Team_BunduF-ECM
Factor: 13561473616420771913