30 383 719 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 =	370000
B2 =	8695000

Status	Date	User	Residue	Shift	Software
Verified	2006-07-10	Eastern Kentucky University	D2A919E3EAE28C38	270569	Windows,Prime95,v24 final,(aka Wc1)
Verified	2013-10-25	Dubslow	D2A919E3EAE28C38	18372756	Linux 64-bit,Prime95,v27.9,build 1

History

Date	User	Type	Result
2020-11-30	-anonymous-	NF	no factor TF: 74-75
2020-04-12	-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
2017-08-28	ramgeis	NF	no factor TF: 70-71
2013-10-25	Dubslow	C-LL	D2A919E3EAE28C38
2012-02-23	Craig Meyers	NF	no factor TF: 68-70
2011-05-17	Ungelovende	NF	no factor TF: 67-68
2006-07-10	-anonymous-	C-LL	D2A919E3EAE28C38
2006-04-28	-anonymous-	NF-PM1	B1=370000, B2=8695000
2005-09-22	delta_t	NF	no factor TF: 1-67
2005-02-12	1997rj7	NF	no factor TF: 1-62
2003-07-21	AxelFox	NF	no factor TF: 1-60
2001-09-16	Net_Force	NF	no factor TF: 1-56
2001-01-14	Joss	NF	no factor TF: 1-52