65 601 817 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 =	585000
B2 =	11407500

Status	Date	User	Residue	Shift	Software
Verified	2015-01-09	Kyle Z Schmidt	22BBA9D5BC14150A	8907422	Windows 64-bit,Prime95,v28.5,build 2
Verified	2023-08-21	-anonymous-	22BBA9D5BC14150A	14811143	Windows 64-bit,Prime95,v29.2,build 5

History

Date	User	Type	Result
2023-08-21	-anonymous-	C-LL	22BBA9D5BC14150A
2022-06-05	La Güira	NF	no factor TF: 74-75
2016-03-28	Mark Rose	NF	no factor TF: 60-63
2015-01-09	Kyle Z Schmidt	C-LL	22BBA9D5BC14150A
2014-02-21	Nesowa	NF-PM1	B1=585000, B2=11407500, E=6
2014-02-11	RichD0	NF	no factor TF: 73-74
2014-02-08	-anonymous-	NF	no factor TF: 72-73
2013-12-21	RichD0	NF	no factor TF: 71-72
2013-03-22	LaurV	NF	no factor TF: 70-71
2013-03-22	LaurV	NF	no factor TF: 69-70
2010-01-11	-anonymous-	NF	no factor TF: 68-69
2010-01-04	runesk	NF	no factor TF: 67-68
2010-01-03	runesk	NF	no factor TF: 66-67
2010-01-02	Sturle Sunde	NF	no factor TF: 65-66
2009-11-03	werdwerdus	NF	no factor TF: 64-65
2009-01-20	Wojciech Florek	NF	no factor TF: 63-64
2004-06-21	1997rj7	NF	no factor TF: 1-60
2003-11-16	Gordon Spence	NF	no factor TF: 1-59