58 076 833 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 =	530000
B2 =	9672500

Status	Date	User	Residue	Shift	Software
Verified	2013-11-02	Kyle Z Schmidt	2DE7178BB7C67EC3	31528227	Windows 64-bit,Prime95,v27.9,build 1
Verified	2021-01-23	chisey	2DE7178BB7C67EC3	44607234	Windows 64-bit,Prime95,v29.4,build 8

History

Date	User	Type	Result
2021-01-23	chisey	C-LL	2DE7178BB7C67EC3
2019-01-20	Chuck	NF	no factor TF: 73-74
2016-02-23	Mark Rose	NF	no factor TF: 61-63
2013-11-02	Kyle Z Schmidt	C-LL	2DE7178BB7C67EC3
2012-11-17	Craig Meyers	NF-PM1	B1=530000, B2=9672500
2012-09-10	Jerry Hallett	NF	no factor TF: 72-73
2012-01-07	ktony	NF	no factor TF: 71-72
2012-01-07	ktony	NF	no factor TF: 70-71
2011-12-27	Craig Meyers	NF	no factor TF: 69-70
2011-05-28	-anonymous-	NF	no factor TF: 68-69
2009-11-28	Sturle Sunde	NF	no factor TF: 67-68
2008-10-29	Sturle Sunde	NF	no factor TF: 66-67
2008-10-28	Sturle Sunde	NF	no factor TF: 65-66
2008-10-27	Sturle Sunde	NF	no factor TF: 64-65
2008-10-26	Sturle Sunde	NF	no factor TF: 63-64
2003-09-09	mdrg	NF	no factor TF: 1-61
2003-07-30	-anonymous-	NF	no factor TF: 1-59
2002-04-28	-anonymous-	NF	no factor TF: 1-58
2001-07-17	-anonymous-	NF	no factor TF: 1-57
2000-06-11	-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
1999-12-08	-anonymous-	NF	no factor TF: 1-53

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