55 079 077 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 =	635000
B2 =	14922500

Status	Date	User	Residue	Shift	Software
Verified	2015-08-09	MadPoo 🙂	A45E09D6A215A20D	18779101	Windows 64-bit,Prime95,v26,(aka We4)
Verified	2015-08-30	Numberwang	A45E09D6A215A20D	27548328	CUDALucas v2.05.1
Verified	2015-10-15	dannytoearth	A45E09D6A215A20D	51796997	Windows 64-bit,Prime95,v27.9,build 1

History

Date	User	Type	Result
2015-10-15	dannytoearth	C-LL	A45E09D6A215A20D
2015-08-30	Numberwang	C-LL	A45E09D6A215A20D
2015-08-09	MadPoo 🙂	C-LL	A45E09D6A215A20D
2014-08-30	LaurV	NF	no factor TF: 73-74
2014-07-02	chalsall	NF	no factor TF: 72-73
2012-06-11	bcp19	NF	no factor TF: 71-72
2011-09-06	Roy Oswald	NF	no factor TF: 70-71
2011-09-02	David Campeau	NF	no factor TF: 69-70
2011-08-06	ixfd64	NF-PM1	B1=635000, B2=14922500
2011-04-05	greensinoz	NF	no factor TF: 68-69
2009-05-14	Johannes Weingartner	NF	no factor TF: 67-68
2009-03-09	Chang Chia-Tche	NF	no factor TF: 66-67
2009-03-07	Chang Chia-Tche	NF	no factor TF: 65-66
2009-03-04	Chang Chia-Tche	NF	no factor TF: 64-65
2008-07-28	-anonymous-	NF	no factor TF: 1-64
2002-06-29	-anonymous-	NF	no factor TF: 1-58
2001-09-10	-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
1999-12-01	-anonymous-	NF	no factor TF: 1-53

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