64 411 003 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 =	575000
B2 =	11212500

Status	Date	User	Residue	Shift	Software
Verified	2014-10-17	Kyle Z Schmidt	31CFB65BF3411045	58232148	Windows 64-bit,Prime95,v27.9,build 1
Verified	2023-04-12	Ari Mäkinen	31CFB65BF3411045	6581321	Windows 64-bit,Prime95,v29.3,build 1

History

Date	User	Type	Result
2023-04-12	Ari Mäkinen	C-LL	31CFB65BF3411045
2022-11-27	tottenhoff	NF	no factor TF: 74-75
2016-02-23	Mark Rose	NF	no factor TF: 60-63
2014-10-17	Kyle Z Schmidt	C-LL	31CFB65BF3411045
2013-06-26	Nesowa	NF-PM1	B1=575000, B2=11212500, E=6
2013-05-29	Tom Duell	NF	no factor TF: 73-74
2013-05-29	Tom Duell	NF	no factor TF: 72-73
2013-05-29	Tom Duell	NF	no factor TF: 71-72
2013-05-29	Tom Duell	NF	no factor TF: 70-71
2012-04-20	Todd	NF	no factor TF: 69-70
2010-01-04	Romanyuk	NF	no factor TF: 68-69
2009-10-19	curtisc	NF	no factor TF: 67-68
2009-10-14	Carlos "casep" Sepulveda	NF	no factor TF: 66-67
2009-10-10	Per Jessen	NF	no factor TF: 65-66
2009-10-05	xtuh	NF	no factor TF: 64-65
2009-03-09	SDSA	NF	no factor TF: 63-64
2004-01-27	AxelFox	NF	no factor TF: 1-60
2003-09-14	Gordon Spence	NF	no factor TF: 1-59