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
131231Factored
FactorDigitsBitsDate
304052515906011444.8old
1204188537634971546.82008-07-26 12:48:54
67988747218407687467224178793388945835168942139.02013-06-12 12:20:05
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000205 / 1566
Estimated T-Level: 30.7
TF below 2^97 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver Kruse8F0E58B12AB60B703013
Verified2017-10-09Chang Chia-Tche8F0E58B12AB60B703013
Verified2017-10-13kkmrkkblmbrbk8F0E58B12AB60B7034116213
Verified2020-04-17Oliver KruseEE714EFACB456063310499853
Verified2024-02-03Wentao HuangEE714EFACB45606335000153
P-1 factors
DateFactorB1B2
2013-06-1267988747218407687467224178793388945835168910000000200000000
History
DateUserTypeResult
2024-02-03Naegi MakotoCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M131231/30405251590601/120418853763497/679887472184076874672241787933889458351689 : EE714EFACB456063
PRP proof power = 5
PRP: Verified
Proof certified good
2020-04-17Oliver KruseC-PRP
M131231/30405251590601/120418853763497/679887472184076874672241787933889458351689 : EE714EFACB456063
PRP: Verified
PRP without proof (small exponent)
2017-10-13kkmrkkblmbrbkC-PRP
M131231/30405251590601/120418853763497/679887472184076874672241787933889458351689 : 8F0E58B12AB60B70
PRP: Verified
PRP without proof (not generated)
2017-10-09Chang Chia-TcheC-PRP
M131231/known_factors : 8F0E58B12AB60B70
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M131231/30405251590601/120418853763497/679887472184076874672241787933889458351689 : 8F0E58B12AB60B70
PRP without proof (not generated)
2017-03-23kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2013-06-12BloodIceF-PM1
Factor: 679887472184076874672241787933889458351689
2008-07-26J FeitsmaF
Factor: 120418853763497