58 035 221 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 =	9805000

Status	Date	User	Residue	Shift	Software
Verified	2014-06-25	cuBerBruce	E7EB7EABA1CE529E	8029176	Mac OS X 64-bit,Prime95,v27.9,build 1
Verified	2021-07-01	John Elliott IV	E7EB7EABA1CE529E	44819362	Windows 64-bit,Prime95,v29.8,build 3
Bad	2023-01-04	Reed_Young	BE94B095385DFCE1	51775803	Linux 64-bit,Prime95,v26.6,build 3

History

Date	User	Type	Result
2023-01-04	Reed_Young	C-LL	BE94B095385DFCE1
2021-07-01	John Elliott IV	C-LL	E7EB7EABA1CE529E
2019-01-08	Chuck	NF	no factor TF: 73-74
2014-06-25	cuBerBruce	C-LL	E7EB7EABA1CE529E
2012-10-03	tsc	NF-PM1	B1=530000, B2=9805000
2012-09-06	Jerry Hallett	NF	no factor TF: 72-73
2012-05-23	Craig Meyers	NF	no factor TF: 71-72
2011-06-05	TheJudger	NF	no factor TF: 70-71
2011-06-05	TheJudger	NF	no factor TF: 69-70
2009-03-02	-anonymous-	NF	no factor TF: 1-69
2009-02-02	-anonymous-	NF	no factor TF: 1-69
2008-10-26	Sturle Sunde	NF	no factor TF: 64-65
2008-10-26	Sturle Sunde	NF	no factor TF: 63-64
2003-08-25	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
2001-07-07	-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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