76 722 991 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 =	645000
B2 =	10965000

Status	Date	User	Residue	Shift	Software
Verified	2018-01-11	GP97	5CE695FE4EA2F92E	18484205	Windows 64-bit,Prime95,v28.10,build 1
Verified	2018-01-19	cuBerBruce	5CE695FE4EA2F92E	4056084	Windows 64-bit,Prime95,v28.7,build 1

History

Date	User	Type	Result
2018-01-19	cuBerBruce	C-LL	5CE695FE4EA2F92E
2018-01-11	GP97	C-LL	5CE695FE4EA2F92E
2016-06-15	garo	NF-PM1	B1=645000, B2=10965000
2016-04-22	AirSquirrels	NF	no factor TF: 74-75
2016-04-17	Judge Hale	NF	no factor TF: 73-74
2012-04-07	DRH	NF	no factor TF: 72-73
2012-04-07	DRH	NF	no factor TF: 71-72
2011-06-05	rduerr	NF	no factor TF: 66-71
2011-06-03	hustensaft	NF	no factor TF: 65-66
2011-05-29	hustensaft	NF	no factor TF: 64-65
2008-05-21	1997rj7	NF	no factor TF: 1-64
2004-04-20	markr	NF	no factor TF: 1-62
2000-08-24	-anonymous-	NF	no factor TF: 1-53