30 814 361 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 =	1500000
B2 =	45000000

Status	Date	User	Residue	Shift	Software
Verified	2006-07-10	C. Cooper / S. Boone	F8D2C3E69A930FFF	25172716	Windows,Prime95,v23,NT service,(aka WZ5)
Verified	2013-11-04	Dubslow	F8D2C3E69A930FFF	22854499	Linux 64-bit,Prime95,v27.9,build 1

History

Date	User	Type	Result
2021-10-04	TheJudger	NF	no factor TF: 74-75
2021-08-26	Sid & Andy	NF-PM1	B1=1500000, B2=45000000
2020-03-22	-anonymous-	NF	no factor TF: 73-74
2019-12-07	-anonymous-	NF	no factor TF: 72-73
2019-12-07	-anonymous-	NF	no factor TF: 71-72
2018-04-11	ramgeis	NF	no factor TF: 70-71
2013-11-04	Dubslow	C-LL	F8D2C3E69A930FFF
2013-02-21	apsen	NF	no factor TF: 69-70
2012-04-21	bcp19	NF	no factor TF: 68-69
2006-07-10	curtisc	C-LL	F8D2C3E69A930FFF
2006-07-10	curtisc	NF	no factor TF: 1-68
2006-07-10	-anonymous-	NF	no factor TF: 1-67
2006-07-10	curtisc	NF-PM1	B1=440000
2006-03-14	-anonymous-	NF	no factor TF: 1-67
2005-09-22	-anonymous-	NF	no factor TF: 1-67
2005-04-26	markr	NF	no factor TF: 1-62
2003-08-25	AxelFox	NF	no factor TF: 1-60
2000-11-15	Joss	NF	no factor TF: 1-52