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
2884699Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 270
TF target 263
TF below 2^74 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 10000000
B2 = 10198818630
ECM
DigitsB1Curves
2550000214 / 280
Estimated T-Level: 23.8
LL
StatusDateUserResidueShift
VerifiedJohn LloydCFD3ABDD3BD7C7EC0
Verified1999-05-09Goede Schueler/Christoph SteinbeckCFD3ABDD3BD7C7EC456678
Verified2018-09-26kkmrkkblmbrbkCFD3ABDD3BD7C7EC1097689
History
DateUserTypeResult
2023-10-24JossNF-PM1
B1=10000000, B2=10198818630
2023-10-21JossNF-PM1
B1=10000000, B2=1246214970
2023-10-20JossNF-PM1
B1=10000000, B2=432341910
2023-10-03JossNF-PM1
B1=1000000, B2=9556867320
2023-09-14JossNF-PM1
B1=1000000, B2=4673628960
2023-07-17TJAOINF
no factor from 2^69 to 2^70
2023-05-25JossNF-PM1
B1=1000000, B2=2232009780
2021-05-04TJAOINF
no factor from 2^68 to 2^69
2020-02-22masserNF-PM1
B1=5000000, B2=200000000, E=12
2019-10-19masserNF-PM1
B1=2900000, B2=29000000, E=12
2019-01-11chuenkitNF
no factor from 2^67 to 2^68
2018-09-26kkmrkkblmbrbkC-LL
CFD3ABDD3BD7C7EC
2018-09-05JossNF-PM1
B1=857304, B2=2571912, E=6
2018-09-03JossNF-PM1
B1=857304, B2=1714608, E=6
2017-11-13Gordon SpenceNF
no factor from 2^66 to 2^67
2017-03-11JossNF-PM1
B1=328458, B2=3284580, E=6
2016-12-14JossNF-PM1
B1=273715
2016-10-28JossNF-PM1
B1=190080
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2015-11-17omylistNF
no factor from 2^65 to 2^66
2015-04-21VictordeHollanderNF
no factor from 2^64 to 2^65
2015-04-21VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-10dbaughNF
no factor from 2^62 to 2^63
2012-01-15Grant McCrackenNF
no factor from 2^61 to 2^62
2009-02-14Sturle SundeNF
no factor from 2^60 to 2^61