52 960 223 Exponent Status

PrimeNet Exponent Status

M_n

Details

Composite: proven not-prime with Lucas-Lehmer test

No factors below 2⁷⁶

TF target 2⁷³

P-1

B1 =	520000
B2 =	10920000

Status	Date	User	Residue	Shift	Software
Verified	2013-08-12	curtisc	FF029C39B7BEABA4	42163391	Windows Service,Prime95,v27.9,build 1
Verified	2020-07-12	Dubslow	FF029C39B7BEABA4	46836559	Linux 64-bit,Prime95,v29.8,build 6

History

Date	User	Type	Result
2020-07-12	Dubslow	C-LL	FF029C39B7BEABA4
2020-06-19	-anonymous-	NF	no factor TF: 75-76
2020-06-19	-anonymous-	NF	no factor TF: 74-75
2019-07-10	-anonymous-	NF	no factor TF: 73-74
2016-02-07	AirSquirrels	NF	no factor TF: 72-73
2013-08-12	curtisc	C-LL	FF029C39B7BEABA4
2012-01-20	megavink	NF-PM1	B1=520000, B2=10920000, E=12
2012-01-07	Craig Meyers	NF	no factor TF: 70-72
2011-11-11	-anonymous-	NF	no factor TF: 69-70
2010-04-07	bigbear3001	NF	no factor TF: 68-69
2009-05-04	S485122	NF	no factor TF: 67-68
2009-05-04	S485122	NF	no factor TF: 66-67
2009-05-04	S485122	NF	no factor TF: 65-66
2009-05-03	S485122	NF	no factor TF: 64-65
2008-11-13	Derek	NF	no factor TF: 1-64
2008-10-04	-anonymous-	NF	no factor TF: 1-63
2004-04-09	1997rj7	NF	no factor TF: 1-60
2002-06-02	-anonymous-	NF	no factor TF: 1-58
2001-07-17	-anonymous-	NF	no factor TF: 1-57
2000-05-17	-anonymous-	NF	no factor TF: 1-56
2000-02-23	-anonymous-	NF	no factor TF: 1-54
2000-01-04	-anonymous-	NF	no factor TF: 1-53
1999-12-01	-anonymous-	NF	no factor TF: 1-53

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