61 980 943 Exponent Status

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 =	10730000

Status	Date	User	Residue	Shift	Software
Verified	2013-07-27	Amazon EC2	1A5AF23FF268B306	48486326	Linux 64-bit,Prime95,v27.9,build 1
Verified	2022-10-29	rudimeier	1A5AF23FF268B306	49121323	Linux 64-bit,Prime95,v29.8,build 6
Verified	2022-10-30	Numberwang	1A5AF23FF268B306	0	gpuowl,v6.11-382-g98ff9c7-dirty

History

Date	User	Type	Result
2022-10-30	Numberwang	C-LL	1A5AF23FF268B306
2022-10-29	rudimeier	C-LL	1A5AF23FF268B306
2020-10-21	megavink	NF	no factor TF: 74-75
2016-02-23	Mark Rose	NF	no factor TF: 62-63
2013-07-27	Amazon EC2	C-LL	1A5AF23FF268B306
2013-06-11	Jerry Hallett	NF	no factor TF: 73-74
2013-04-09	driveByUpgrades	NF-PM1	B1=580000, B2=10730000
2013-03-28	Kevin Jaget	NF	no factor TF: 72-73
2013-02-13	SWL551	NF	no factor TF: 71-72
2013-02-09	lycorn	NF	no factor TF: 70-71
2011-11-27	Eugene Thorne	NF	no factor TF: 69-70
2009-10-17	raymondf	NF	no factor TF: 68-69
2009-10-13	raymondf	NF	no factor TF: 67-68
2009-10-08	raymondf	NF	no factor TF: 66-67
2009-10-02	Arjen Rodenhuis	NF	no factor TF: 65-66
2009-07-29	CubeQuest.org	NF	no factor TF: 64-65
2009-04-18	markr	NF	no factor TF: 63-64
2004-04-20	-anonymous-	NF	no factor TF: 1-62
2003-12-13	Gordon Spence	NF	no factor TF: 1-60
2003-06-23	Gordon Spence	NF	no factor TF: 1-59

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