61 006 579 Exponent Status

PrimeNet Exponent Status

M_n

Details

Composite: proven not-prime with Lucas-Lehmer test

No factors below 2⁷⁴

TF target 2⁷⁴

P-1

B1 =	645000
B2 =	14028750

Status	Date	User	Residue	Shift	Software
Verified	2014-05-27	Kyle Z Schmidt	C85D82B3CE2DAC6F	35852673	Windows 64-bit,Prime95,v27.9,build 1
Verified	2015-01-13	Josephine	C85D82B3CE2DAC6F	41750342	Linux 32-bit,Prime95,v25.11,build 2

History

Date	User	Type	Result
2016-02-23	Mark Rose	NF	no factor TF: 62-63
2015-01-13	Josephine	C-LL	C85D82B3CE2DAC6F
2014-05-27	Kyle Z Schmidt	C-LL	C85D82B3CE2DAC6F
2013-06-03	Jerry Hallett	NF	no factor TF: 73-74
2013-01-12	Bill Staffen	NF	no factor TF: 72-73
2013-01-12	Bill Staffen	NF	no factor TF: 71-72
2012-03-26	Smok_bmv	NF-PM1	B1=645000, B2=14028750
2011-11-04	megavink	NF	no factor TF: 70-71
2011-11-04	megavink	NF	no factor TF: 69-70
2009-10-11	Sturle Sunde	NF	no factor TF: 68-69
2009-10-09	Sturle Sunde	NF	no factor TF: 67-68
2009-10-07	Sturle Sunde	NF	no factor TF: 66-67
2009-10-05	sunithaya	NF	no factor TF: 65-66
2009-10-02	DomSLee	NF	no factor TF: 64-65
2009-03-30	Sturle Sunde	NF	no factor TF: 63-64
2004-04-09	-anonymous-	NF	no factor TF: 1-62
2003-10-08	Gordon Spence	NF	no factor TF: 1-60
2003-06-06	Gordon Spence	NF	no factor TF: 1-59
2002-04-20	Alex Kruppa	NF	no factor TF: 1-58
1999-12-23	-anonymous-	NF	no factor TF: 1-53

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