58 748 527 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 =	11137500

Status	Date	User	Residue	Shift	Software
Verified	2013-12-25	kawarin	A068DE7DE54380B0	36041664	Windows 64-bit,Prime95,v27.7,build 2
Verified	2020-12-14	Dubslow	A068DE7DE54380B0	22791363	Linux 64-bit,Prime95,v29.8,build 6

History

Date	User	Type	Result
2020-12-14	Dubslow	C-LL	A068DE7DE54380B0
2020-11-10	-anonymous-	NF	no factor TF: 75-76
2020-11-10	-anonymous-	NF	no factor TF: 74-75
2018-11-27	bayanne	NF	no factor TF: 73-74
2016-02-23	Mark Rose	NF	no factor TF: 60-63
2013-12-25	kawarin	C-LL	A068DE7DE54380B0
2012-08-15	monst	NF-PM1	B1=550000, B2=11137500, E=6
2012-07-18	Jerry Hallett	NF	no factor TF: 71-73
2011-12-02	ANONYMOUS	NF	no factor TF: 70-71
2011-05-06	dsl	NF	no factor TF: 69-70
2009-09-09	-anonymous-	NF	no factor TF: 68-69
2008-11-09	precius1	NF	no factor TF: 67-68
2008-11-08	precius1	NF	no factor TF: 66-67
2008-11-06	ComputerraRU	NF	no factor TF: 65-66
2008-11-04	ComputerraRU	NF	no factor TF: 64-65
2008-11-03	ComputerraRU	NF	no factor TF: 63-64
2003-12-02	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
2000-06-23	-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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