64 770 733 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 =	580000
B2 =	11745000

Status	Date	User	Residue	Shift	Software
Verified	2014-11-12	Kyle Z Schmidt	B9EAA58AC8D582CF	41729695	Windows 64-bit,Prime95,v28.5,build 2
Verified	2023-05-07	-anonymous-	B9EAA58AC8D582CF	35630186	Windows 64-bit,Prime95,v27.9,build 1

History

Date	User	Type	Result
2024-05-24	Jarod McClintock	NF	no factor TF: 69-71
2023-05-07	-anonymous-	C-LL	B9EAA58AC8D582CF
2022-10-02	suika_predator	NF	no factor TF: 74-75
2016-02-23	Mark Rose	NF	no factor TF: 60-63
2014-11-12	Kyle Z Schmidt	C-LL	B9EAA58AC8D582CF
2013-12-22	TheJudger	NF-PM1	B1=580000, B2=11745000, E=12
2013-12-15	A_Savchenko	NF	no factor TF: 73-74
2013-12-15	A_Savchenko	NF	no factor TF: 72-73
2013-11-10	bayanne	NF	no factor TF: 71-72
2013-01-15	Carsten Kossendey	NF	no factor TF: 70-71
2013-01-15	Carsten Kossendey	NF	no factor TF: 69-70
2009-10-07	{WC}PistolPete	NF	no factor TF: 68-69
2009-10-03	Manfred Bichler	NF	no factor TF: 67-68
2009-03-20	CPSlacker	NF	no factor TF: 66-67
2009-03-19	CPSlacker	NF	no factor TF: 65-66
2009-03-18	Myles	NF	no factor TF: 64-65
2009-03-17	SAHS Science Dept	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