67 140 323 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 2⁷⁴

P-1

B1 =	725000
B2 =	16131250

Status	Date	User	Residue	Shift	Software
Verified	2014-02-07	Kyle Z Schmidt	068166A3EE0C00C6	37047890	Windows 64-bit,Prime95,v27.9,build 1
Verified	2023-05-06	Ryan Propper	068166A3EE0C00C6	30357727	Linux 64-bit,Prime95,v30.7,build 9

History

Date	User	Type	Result
2023-05-06	Ryan Propper	C-LL	068166A3EE0C00C6
2020-07-19	TheJudger	NF	no factor TF: 74-75
2016-03-29	Mark Rose	NF	no factor TF: 62-63
2014-02-07	Kyle Z Schmidt	C-LL	068166A3EE0C00C6
2013-11-21	Jerry Hallett	NF	no factor TF: 73-74
2013-11-09	gcardona	NF	no factor TF: 72-73
2013-11-09	gcardona	NF	no factor TF: 71-72
2013-09-21	GrunwalderGIMP	NF-PM1	B1=725000, B2=16131250
2013-07-01	SMoffat	NF	no factor TF: 70-71
2012-02-23	ITS	NF	no factor TF: 69-70
2009-12-12	Sturle Sunde	NF	no factor TF: 68-69
2009-04-17	linded	NF	no factor TF: 67-68
2009-04-11	linded	NF	no factor TF: 66-67
2009-04-07	drmartin4	NF	no factor TF: 65-66
2009-04-02	glennpat	NF	no factor TF: 64-65
2008-12-11	Wojciech Florek	NF	no factor TF: 63-64
2004-06-04	oerwin	NF	no factor TF: 1-62