58 508 273 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 =	815000
B2 =	815000

Status	Date	User	Residue	Shift	Software
Verified	2012-03-24	curtisc	60091D68B4B7BB44	56151808	Windows Service,Prime95,v26.5,build 5
Verified	2020-11-09	Dubslow	60091D68B4B7BB44	21397498	Linux 64-bit,Prime95,v29.8,build 6

History

Date	User	Type	Result
2020-11-09	Dubslow	C-LL	60091D68B4B7BB44
2019-02-10	TheJudger	NF	no factor TF: 73-74
2016-02-23	Mark Rose	NF	no factor TF: 60-63
2015-05-29	monst	NF	no factor TF: 72-73
2015-05-29	monst	NF	no factor TF: 71-72
2012-03-24	curtisc	C-LL	60091D68B4B7BB44
2012-02-24	curtisc	NF-PM1	B1=815000
2011-05-05	Ungelovende	NF	no factor TF: 70-71
2011-05-05	Ungelovende	NF	no factor TF: 69-70
2011-05-05	Ungelovende	NF	no factor TF: 68-69
2009-06-02	Sturle Sunde	NF	no factor TF: 67-68
2008-11-02	oodaira	NF	no factor TF: 66-67
2008-11-01	oodaira	NF	no factor TF: 65-66
2008-10-31	oodaira	NF	no factor TF: 64-65
2008-10-30	oodaira	NF	no factor TF: 63-64
2003-10-23	1997rj7	NF	no factor TF: 1-60
2003-07-30	-anonymous-	NF	no factor TF: 1-59
2002-10-07	-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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