54 281 509 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 =	650000
B2 =	19012500

Status	Date	User	Residue	Shift	Software
Verified	2013-05-30	Adam	C3BE2AE342A46850	24799101	Windows 64-bit,Prime95,v27.9,build 1
Verified	2020-11-23	Dubslow	C3BE2AE342A46850	14405854	Linux 64-bit,Prime95,v29.8,build 6

History

Date	User	Type	Result
2020-11-23	Dubslow	C-LL	C3BE2AE342A46850
2019-06-29	Mark Rose	NF	no factor TF: 73-74
2016-01-29	AirSquirrels	NF	no factor TF: 72-73
2013-05-30	Adam	C-LL	C3BE2AE342A46850
2011-12-21	c10ck3r	NF	no factor TF: 71-72
2011-08-19	kdgehman	NF	no factor TF: 70-71
2011-08-19	kdgehman	NF	no factor TF: 69-70
2011-08-19	kdgehman	NF	no factor TF: 68-69
2011-06-18	DRH	NF-PM1	B1=650000, B2=19012500, E=12
2009-05-18	scuderiaDS	NF	no factor TF: 67-68
2009-02-27	Peter Warnholz	NF	no factor TF: 66-67
2009-02-25	Peter Warnholz	NF	no factor TF: 65-66
2009-02-23	Sturle Sunde	NF	no factor TF: 64-65
2008-11-03	1997rj7	NF	no factor TF: 1-64
2008-05-20	Corbyguy	NF	no factor TF: 62-63
2003-12-23	oerwin	NF	no factor TF: 1-62
2003-04-27	oerwin	NF	no factor TF: 1-59
2002-08-31	-anonymous-	NF	no factor TF: 1-58
2001-08-31	-anonymous-	NF	no factor TF: 1-57
2000-05-31	-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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