54 122 987 Exponent Status

PrimeNet Exponent Status

M_n

Details

Composite: proven not-prime with Lucas-Lehmer test

No factors below 2⁷⁴

TF target 2⁷³

P-1

B1 =	640000
B2 =	17760000

Status	Date	User	Residue	Shift	Software
Verified	2013-01-26	twmoss	2FD83B2E124EA9AC	9631435	Windows 64-bit,Prime95,v27.7,build 2
Verified	2020-12-16	Dubslow	2FD83B2E124EA9AC	39230523	Linux 64-bit,Prime95,v29.8,build 6

History

Date	User	Type	Result
2020-12-16	Dubslow	C-LL	2FD83B2E124EA9AC
2019-08-09	Jon Pace	NF	no factor TF: 73-74
2016-01-30	AirSquirrels	NF	no factor TF: 72-73
2013-01-26	twmoss	C-LL	2FD83B2E124EA9AC
2012-04-29	Craig Meyers	NF	no factor TF: 71-72
2012-02-25	megavink	NF	no factor TF: 70-71
2011-12-31	Craig Meyers	NF	no factor TF: 69-70
2011-10-27	oerwin	NF-PM1	B1=640000, B2=17760000
2011-10-15	rduerr	NF	no factor TF: 68-69
2009-05-29	S485122	NF	no factor TF: 67-68
2009-05-29	S485122	NF	no factor TF: 66-67
2009-02-26	Bryn Pugh-Jones	NF	no factor TF: 65-66
2009-02-23	glennpat	NF	no factor TF: 64-65
2008-12-08	1997rj7	NF	no factor TF: 1-64
2008-05-10	-anonymous-	NF	no factor TF: 1-63
2003-08-08	oerwin	NF	no factor TF: 1-62
2002-08-24	-anonymous-	NF	no factor TF: 1-58
2001-08-18	-anonymous-	NF	no factor TF: 1-57
2000-05-24	-anonymous-	NF	no factor TF: 1-56
2000-03-01	-anonymous-	NF	no factor TF: 1-54
2000-01-12	-anonymous-	NF	no factor TF: 1-53
1999-12-08	-anonymous-	NF	no factor TF: 1-53

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