45 601 133 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 2⁷³

TF target 2⁷²

P-1

B1 =	555000
B2 =	15401250

Status	Date	User	Residue	Shift	Software
Verified	2009-10-19	Kyle Z Schmidt	409F6F8B0CE163EF	24109713	Windows,Prime95,v25.9,build 4
Verified	2016-02-18	diatorker	409F6F8B0CE163EF	3502040	Windows 64-bit,Prime95,v28.7,build 1

History

Date	User	Type	Result
2017-12-17	Mark Rose	NF	no factor TF: 72-73
2016-02-18	diatorker	C-LL	409F6F8B0CE163EF
2015-10-23	-anonymous-	NF	no factor TF: 71-72
2015-09-21	Mark Rose	NF	no factor TF: 70-71
2015-08-04	LaurV	NF	no factor TF: 69-70
2014-08-14	VictordeHollander	NF	no factor TF: 68-69
2009-10-19	Kyle Z Schmidt	C-LL	409F6F8B0CE163EF
2009-08-08	Kyle Z Schmidt	NF-PM1	B1=555000, B2=15401250
2007-12-31	tsc	NF	no factor TF: 1-68
2000-12-14	Joss	NF	no factor TF: 1-56