30 239 969 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite: proven not-prime with Lucas-Lehmer test

No factors below 2⁷⁵

TF target 2⁷¹

P-1

B1 =	355000
B2 =	7898750

Status	Date	User	Residue	Shift	Software
Verified	2005-11-13	Carl McCombs	2278CAB5BA7BE7C2	26632141	Windows,Prime95,v23,(aka WZ1)
Verified	2013-09-10	Dubslow	2278CAB5BA7BE7C2	12544514	Linux 64-bit,Prime95,v27.9,build 1

History

Date	User	Type	Result
2024-06-04	LaurV	NF	no factor TF: 69-70
2020-11-14	-anonymous-	NF	no factor TF: 74-75
2020-04-11	-anonymous-	NF	no factor TF: 73-74
2019-12-20	-anonymous-	NF	no factor TF: 71-72
2019-12-20	-anonymous-	NF	no factor TF: 72-73
2017-08-06	ramgeis	NF	no factor TF: 70-71
2013-09-10	Dubslow	C-LL	2278CAB5BA7BE7C2
2013-05-01	Architects Cubed	NF	no factor TF: 69-70
2012-02-10	Craig Meyers	NF	no factor TF: 68-69
2005-11-13	-anonymous-	C-LL	2278CAB5BA7BE7C2
2005-10-18	-anonymous-	NF	no factor TF: 1-68
2005-10-18	-anonymous-	NF-PM1	B1=355000, B2=7898750
2005-07-17	TheJudger	NF	no factor TF: 1-67
2005-02-02	1997rj7	NF	no factor TF: 1-62
2003-06-30	AxelFox	NF	no factor TF: 1-60
2001-09-16	Net_Force	NF	no factor TF: 1-56
2000-11-05	Joss	NF	no factor TF: 1-54