51 567 343 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 =	610000
B2 =	16775000

Status	Date	User	Residue	Shift	Software
Verified	2011-11-04	Dubslow	E838772A8838D441	1099003	Windows 64-bit,Prime95,v26.6,build 3
Verified	2019-10-26	Ryan Propper	E838772A8838D441	41532812	Linux 64-bit,Prime95,v29.5,(aka Wh8)

History

Date	User	Type	Result
2019-10-26	Ryan Propper	C-LL	E838772A8838D441
2019-07-01	-anonymous-	NF	no factor TF: 73-74
2016-02-23	Mark Rose	NF	no factor TF: 60-63
2016-01-04	AirSquirrels	NF	no factor TF: 72-73
2015-12-18	-anonymous-	NF	no factor TF: 71-72
2011-11-04	Dubslow	C-LL	E838772A8838D441
2011-10-17	Dubslow	NF	no factor TF: 70-71
2011-10-06	Chuck	NF	no factor TF: 69-70
2010-05-18	-anonymous-	NF	no factor TF: 68-69
2010-03-19	unconnected	NF-PM1	B1=610000, B2=16775000
2009-07-07	NeedGem Liou	NF	no factor TF: 67-68
2008-12-08	KYOJI_KAMEI	NF	no factor TF: 66-67
2008-12-01	oodaira	NF	no factor TF: 65-66
2008-11-30	oodaira	NF	no factor TF: 64-65
2008-11-29	oodaira	NF	no factor TF: 63-64
2003-11-28	apocalypse	NF	no factor TF: 1-60
2002-03-03	-anonymous-	NF	no factor TF: 1-58
2001-05-20	-anonymous-	NF	no factor TF: 1-57
2000-04-27	-anonymous-	NF	no factor TF: 1-56
2000-02-16	-anonymous-	NF	no factor TF: 1-54

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