64 761 757 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 =	2000000
B2 =	100000000

Status	Date	User	Residue	Shift	Software
Verified	2014-12-06	Al Lovrich	EAD4E7E5B90F37EE	36115291	Mac OS X 64-bit,Prime95,v28.5,build 2
Verified	2014-12-06	curtisc	EAD4E7E5B90F37EE	66670	Windows Service,Prime95,v27.9,build 1
Verified	2015-07-12	MadPoo 🙂	EAD4E7E5B90F37EE	42383860	Windows 64-bit,Prime95,v26,(aka We4)

History

Date	User	Type	Result
2016-02-23	Mark Rose	NF	no factor TF: 60-63
2015-07-12	MadPoo 🙂	C-LL	EAD4E7E5B90F37EE
2015-05-18	BloodIce	NF-PM1	B1=2000000, B2=100000000, E=6
2014-12-06	curtisc	C-LL	EAD4E7E5B90F37EE
2014-12-06	Al Lovrich	C-LL	EAD4E7E5B90F37EE
2013-06-26	HBendtz	NF-PM1	B1=580000, B2=11455000, E=12
2013-05-27	Bdot	NF	no factor TF: 73-74
2013-05-26	Bdot	NF	no factor TF: 72-73
2013-05-26	Bdot	NF	no factor TF: 71-72
2013-05-25	Bdot	NF	no factor TF: 70-71
2012-01-18	-anonymous-	NF	no factor TF: 69-70
2009-10-02	1fast6	NF	no factor TF: 68-69
2009-09-27	S00030	NF	no factor TF: 67-68
2009-03-15	-anonymous-	NF	no factor TF: 66-67
2009-03-14	Dr Stu	NF	no factor TF: 65-66
2009-03-13	Dr Stu	NF	no factor TF: 64-65
2009-03-13	vidmar	NF	no factor TF: 63-64
2004-02-07	AxelFox	NF	no factor TF: 1-60
2003-09-29	Gordon Spence	NF	no factor TF: 1-59