58 333 291 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 =	540000
B2 =	10800000

Status	Date	User	Residue	Shift	Software
Verified	2013-02-14	Bartholomew Barker	123FD6797C1CF8E4	20733994	Windows 64-bit,Prime95,v27.7,build 2
Verified	2021-08-26	Keith Schwab	123FD6797C1CF8E4	12200345	Windows 64-bit,Prime95,v29.8,build 5
Verified	2023-03-06	Reed_Young	123FD6797C1CF8E4	36360610	Linux 64-bit,Prime95,v30.8,build 18

History

Date	User	Type	Result
2023-03-06	Reed_Young	C-LL	123FD6797C1CF8E4
2021-08-26	Keith Schwab	C-LL	123FD6797C1CF8E4
2019-02-03	TheJudger	NF	no factor TF: 73-74
2016-02-23	Mark Rose	NF	no factor TF: 61-63
2013-02-14	Bartholomew Barker	C-LL	123FD6797C1CF8E4
2012-10-19	oodaira	NF-PM1	B1=540000, B2=10800000
2012-09-22	Bdot	NF	no factor TF: 72-73
2012-06-09	Craig Meyers	NF	no factor TF: 71-72
2011-11-24	Aldo_Grid	NF	no factor TF: 70-71
2011-07-02	TheJudger	NF	no factor TF: 69-70
2011-05-01	megavink	NF	no factor TF: 68-69
2009-06-02	Helmut Zulus	NF	no factor TF: 67-68
2009-03-17	willmore	NF	no factor TF: 66-67
2009-03-16	willmore	NF	no factor TF: 65-66
2009-03-15	willmore	NF	no factor TF: 64-65
2009-03-14	willmore	NF	no factor TF: 63-64
2003-12-13	-anonymous-	NF	no factor TF: 1-61
2003-12-02	-anonymous-	NF	no factor TF: 1-61
2003-07-30	-anonymous-	NF	no factor TF: 1-59
2002-09-22	-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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