65 538 653 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 2⁷⁴

TF target 2⁷⁴

P-1

B1 =	585000
B2 =	11700000

Status	Date	User	Residue	Shift	Software
Verified	2013-09-18	Kyle Z Schmidt	6ADC6E498C4ACC6C	312151	Windows 64-bit,Prime95,v27.9,build 1
Verified	2022-04-29	-anonymous-	6ADC6E498C4ACC6C	53688661	Windows 64-bit,Prime95,v28.7,build 1

History

Date	User	Type	Result
2022-04-29	-anonymous-	C-LL	6ADC6E498C4ACC6C
2016-03-28	Mark Rose	NF	no factor TF: 60-63
2013-09-18	Kyle Z Schmidt	C-LL	6ADC6E498C4ACC6C
2013-08-20	Bdot	NF-PM1	B1=585000, B2=11700000, E=6
2013-07-31	Jerry Hallett	NF	no factor TF: 73-74
2013-06-01	TheJudger	NF	no factor TF: 72-73
2013-06-01	TheJudger	NF	no factor TF: 71-72
2013-06-01	TheJudger	NF	no factor TF: 70-71
2012-01-22	Mark DeVirgilio	NF	no factor TF: 69-70
2010-01-10	ITS	NF	no factor TF: 68-69
2010-01-05	ITS	NF	no factor TF: 67-68
2010-01-04	S00030	NF	no factor TF: 66-67
2010-01-03	-anonymous-	NF	no factor TF: 65-66
2009-10-29	ANONYMOUS	NF	no factor TF: 64-65
2009-01-14	Wojciech Florek	NF	no factor TF: 63-64
2004-06-04	1997rj7	NF	no factor TF: 1-60
2003-11-16	Gordon Spence	NF	no factor TF: 1-59