64 021 901 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	2014-09-25	Kyle Z Schmidt	7BA5429CB74C29BE	7617183	Windows 64-bit,Prime95,v27.9,build 1
Verified	2023-03-14	MrKnoedelmann	7BA5429CB74C29BE	62294621	Linux 64-bit,Prime95,v30.8,build 18

History

Date	User	Type	Result
2023-03-14	MrKnoedelmann	C-LL	7BA5429CB74C29BE
2022-12-04	tottenhoff	NF	no factor TF: 74-75
2016-02-23	Mark Rose	NF	no factor TF: 60-63
2014-09-25	Kyle Z Schmidt	C-LL	7BA5429CB74C29BE
2013-07-20	TheJudger	NF-PM1	B1=575000, B2=11212500, E=6
2013-07-11	Chuck	NF	no factor TF: 73-74
2013-07-11	Chuck	NF	no factor TF: 72-73
2013-07-08	Chuck	NF	no factor TF: 71-72
2012-11-07	Clown_Royal	NF	no factor TF: 70-71
2011-09-20	america64	NF	no factor TF: 69-70
2010-02-10	S04803	NF	no factor TF: 68-69
2010-02-08	S04803	NF	no factor TF: 67-68
2010-02-08	TDH-DXL	NF	no factor TF: 66-67
2009-12-04	-anonymous-	NF	no factor TF: 65-66
2009-12-01	-anonymous-	NF	no factor TF: 64-65
2009-03-05	CPSlacker	NF	no factor TF: 63-64
2004-01-27	AxelFox	NF	no factor TF: 1-60
2003-08-25	Gordon Spence	NF	no factor TF: 1-59
1999-11-17	-anonymous-	NF	no factor TF: 1-50