69 505 729 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 =	720000
B2 =	16560000

Status	Date	User	Residue	Shift	Software
Bad	2014-06-16	Chad Funderburg	D505E0A9109B763E	36361419	Windows 64-bit,Prime95,v27.7,build 2
Verified	2016-12-01	endless_mike	6169F9DF4C9DD428	19269102	Linux 64-bit,Prime95,v28.9,build 2
Verified	2016-12-21	Mark Rose	6169F9DF4C9DD428	40605188	Linux 64-bit,Prime95,v28.10,build 1

History

Date	User	Type	Result
2016-12-21	Mark Rose	C-LL	6169F9DF4C9DD428
2016-12-01	endless_mike	C-LL	6169F9DF4C9DD428
2016-11-13	Bruno Victal	NF	no factor TF: 74-75
2016-03-31	Mark Rose	NF	no factor TF: 67-68
2016-03-31	Mark Rose	NF	no factor TF: 66-67
2015-06-28	monst	NF	no factor TF: 73-74
2015-01-24	monst	NF	no factor TF: 72-73
2014-06-16	Chad Funderburg	C-LL	D505E0A9109B763E
2014-02-21	Brian Chan	NF-PM1	B1=720000, B2=16560000, E=6
2014-02-15	garo	NF	no factor TF: 71-72
2012-10-02	Per Jessen	NF	no factor TF: 70-71
2012-03-23	Roman77	NF	no factor TF: 69-70
2010-06-13	ITS	NF	no factor TF: 68-69
2004-01-18	-anonymous-	NF	no factor TF: 1-66
2003-11-16	-anonymous-	NF	no factor TF: 1-64
2003-09-09	-anonymous-	NF	no factor TF: 1-62
2001-01-08	Joss	NF	no factor TF: 1-56
2000-10-22	Joss	NF	no factor TF: 1-54