58 700 431 Exponent Status

PrimeNet Exponent Status

M_n

Details

Composite: proven not-prime with Lucas-Lehmer test

No factors below 2⁷⁶

TF target 2⁷³

P-1

B1 =	550000
B2 =	10862500

Status	Date	User	Residue	Shift	Software
Verified	2015-07-05	s_c	B7E3A734BA895B47	25339344	Windows 64-bit,Prime95,v28.5,build 2
Verified	2020-11-07	Dubslow	B7E3A734BA895B47	45570245	Linux 64-bit,Prime95,v29.8,build 6

History

Date	User	Type	Result
2020-11-10	-anonymous-	NF	no factor TF: 75-76
2020-11-10	-anonymous-	NF	no factor TF: 74-75
2020-11-07	Dubslow	C-LL	B7E3A734BA895B47
2016-02-23	Mark Rose	NF	no factor TF: 60-63
2015-07-05	s_c	C-LL	B7E3A734BA895B47
2015-01-27	monst	NF	no factor TF: 73-74
2012-09-13	Dmitriy L	NF-PM1	B1=550000, B2=10862500
2012-04-23	BigBrother	NF	no factor TF: 72-73
2012-04-23	BigBrother	NF	no factor TF: 71-72
2012-03-05	Kyle Askine	NF	no factor TF: 70-71
2011-05-10	seekua	NF	no factor TF: 69-70
2009-06-15	heyba_manba	NF	no factor TF: 68-69
2008-11-07	precius1	NF	no factor TF: 67-68
2008-11-06	precius1	NF	no factor TF: 66-67
2008-11-05	precius1	NF	no factor TF: 65-66
2008-11-03	precius1	NF	no factor TF: 64-65
2008-11-02	kutens	NF	no factor TF: 63-64
2003-11-16	1997rj7	NF	no factor TF: 1-60
2003-07-30	-anonymous-	NF	no factor TF: 1-59
2002-10-26	-anonymous-	NF	no factor TF: 1-58
2001-07-17	-anonymous-	NF	no factor TF: 1-57
2000-06-29	-anonymous-	NF	no factor TF: 1-56
2000-06-28	-anonymous-	NF	no factor TF: 1-56
2000-02-09	-anonymous-	NF	no factor TF: 1-54
1999-12-23	-anonymous-	NF	no factor TF: 1-53

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