30 696 307 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 2⁷⁴

TF target 2⁷¹

P-1

B1 =	355000
B2 =	7810000

Status	Date	User	Residue	Shift	Software
Verified	2006-02-01	Joe Parker	6A44F76082E1A7B1	29144366	Windows,Prime95,v22,(aka WY1)
Bad	2013-10-24	MikeBerlin	AC68043963F547D6	0	CUDALucas v2.03
Verified	2013-11-03	Dubslow	6A44F76082E1A7B1	25663606	Linux 64-bit,Prime95,v27.9,build 1

History

Date	User	Type	Result
2020-04-07	-anonymous-	NF	no factor TF: 73-74
2019-12-20	-anonymous-	NF	no factor TF: 72-73
2019-12-20	-anonymous-	NF	no factor TF: 71-72
2018-04-11	ramgeis	NF	no factor TF: 70-71
2013-11-03	Dubslow	C-LL	6A44F76082E1A7B1
2013-10-24	MikeBerlin	C-LL	AC68043963F547D6
2013-03-05	bcp19	NF	no factor TF: 69-70
2012-04-10	bcp19	NF	no factor TF: 68-69
2006-02-01	-anonymous-	C-LL	6A44F76082E1A7B1
2005-12-12	-anonymous-	NF-PM1	B1=355000, B2=7810000
2005-12-12	-anonymous-	NF	no factor TF: 1-68
2005-08-16	sannerud.com	NF	no factor TF: 1-67
2005-04-11	1997rj7	NF	no factor TF: 1-62
2003-08-08	AxelFox	NF	no factor TF: 1-60