53 405 893 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 =	630000
B2 =	17955000

Status	Date	User	Residue	Shift	Software
Verified	2012-02-27	Amazon EC2	3F33F1EAFF07AF0F	18360754	Linux 64-bit,Prime95,v26.5,build 5
Verified	2020-09-03	Dubslow	3F33F1EAFF07AF0F	14269263	Linux 64-bit,Prime95,v29.8,build 6

History

Date	User	Type	Result
2020-09-03	Dubslow	C-LL	3F33F1EAFF07AF0F
2019-07-15	ktony	NF	no factor TF: 73-74
2016-02-11	AirSquirrels	NF	no factor TF: 72-73
2012-02-27	Amazon EC2	C-LL	3F33F1EAFF07AF0F
2012-01-24	megavink	NF	no factor TF: 71-72
2012-01-24	megavink	NF	no factor TF: 70-71
2011-05-18	megavink	NF	no factor TF: 69-70
2010-11-18	GrunwalderGIMP	NF	no factor TF: 68-69
2010-11-17	Sebastian Hornbostel	NF-PM1	B1=630000, B2=17955000, E=6
2009-05-01	SAHS Science Dept	NF	no factor TF: 67-68
2009-02-18	glennpat	NF	no factor TF: 66-67
2009-02-17	glennpat	NF	no factor TF: 65-66
2009-02-16	glennpat	NF	no factor TF: 64-65
2008-10-14	-anonymous-	NF	no factor TF: 1-64
2007-10-17	1997rj7	NF	no factor TF: 1-63
2004-05-11	1997rj7	NF	no factor TF: 1-60
2002-07-06	-anonymous-	NF	no factor TF: 1-58
2001-08-04	-anonymous-	NF	no factor TF: 1-57
2000-05-24	-anonymous-	NF	no factor TF: 1-56
2000-03-01	-anonymous-	NF	no factor TF: 1-54
2000-01-12	-anonymous-	NF	no factor TF: 1-53
1999-12-08	-anonymous-	NF	no factor TF: 1-53

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