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
1450487Factored
FactorDigitsBitsDate
373692037108050082186072375.02022-01-18 14:04:48
2537636507497135322833132477.72014-10-26 12:40:03
15789482457462086191950072580.42015-02-03 11:40:43
4687635035767302223188320412788.62022-01-18 14:04:48
ECM
DigitsB1Curves
2550000280 / 280
30250000105 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Steve Havertine009BDE797ACDBC460
Verified (Factored)1998-12-27Bruce Mitchell009BDE797ACDBC46868919
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-05Oliver Kruse159DBD32F68673522013
Verified (Factored)2017-10-27kkmrkkblmbrbk159DBD32F6867352265209813
Verified2022-01-18SRJ2877DF7E6E1CAA3C3D60423580653
P-1 factors
DateFactorB1B2
2015-02-03157894824574620861919500750000015000000
History
DateUserTypeResult
2022-01-18curtiscCERT
PRP Certification
Proof certified good
2022-01-18SRJ2877C-PRP
M1450487/37369203710805008218607/253763650749713532283313/1578948245746208619195007/468763503576730222318832041 : DF7E6E1CAA3C3D60
PRP proof power = 6
PRP: Verified
Proof certified good
2022-01-18TJAOIF-ECM
Factor: 468763503576730222318832041 / (ECM curve 18, B1=250000, B2=35000000)
2022-01-18TJAOIF-ECM
Factor: 37369203710805008218607 / (ECM curve 12, B1=250000, B2=35000000)
2017-10-27kkmrkkblmbrbkC-PRP
M1450487/253763650749713532283313/1578948245746208619195007 : 159DBD32F6867352
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M1450487/253763650749713532283313/1578948245746208619195007 : 159DBD32F6867352
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-01Oliver KruseC-PRP
M1450487/253763650749713532283313/1578948245746208619195007 : 159DBD32F6867352
PRP without proof (not generated)
2015-02-03alpertronF-PM1
Factor: 1578948245746208619195007 / (P-1, B1=500000, B2=15000000, E=12)
2014-10-26Chang Chia-TcheF-ECM
Factor: 253763650749713532283313 / (ECM curve 1, B1=50000, B2=5000000)
2011-03-08GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-07-29Rob_DeeNF-PM1
B1=200000, B2=5000000, E=6
2010-07-28Rob_DeeNF-PM1
B1=200000, B2=4000000, E=6
2010-07-27Rob_DeeNF-PM1
B1=200000, B2=3000000, E=6
2010-07-26Rob_DeeNF-PM1
B1=200000, B2=2000000, E=6
2010-07-25Rob_DeeNF-PM1
B1=200000, B2=1000000, E=6
2010-07-24Rob_DeeNF-PM1
B1=200000, B2=300000
2010-07-23Rob_DeeNF-PM1
B1=100000, B2=200000
2010-05-07Architects CubedNF
no factor from 2^60 to 2^61