53 378 881 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 =	635000
B2 =	19050000

Status	Date	User	Residue	Shift	Software
Verified	2012-07-14	curtisc	5D803FA5FC0F3304	30969061	Windows Service,Prime95,v27.7,build 2
Verified	2020-08-29	Dubslow	5D803FA5FC0F3304	42369453	Linux 64-bit,Prime95,v29.8,build 6

History

Date	User	Type	Result
2020-08-29	Dubslow	C-LL	5D803FA5FC0F3304
2018-08-06	ktony	NF	no factor TF: 73-74
2016-01-29	AirSquirrels	NF	no factor TF: 72-73
2012-07-14	curtisc	C-LL	5D803FA5FC0F3304
2012-03-23	megavink	NF	no factor TF: 71-72
2012-03-23	megavink	NF	no factor TF: 70-71
2011-06-15	megavink	NF	no factor TF: 69-70
2010-12-31	-anonymous-	NF	no factor TF: 68-69
2010-12-04	apocalypse	NF-PM1	B1=635000, B2=19050000, E=6
2009-04-29	lalera	NF	no factor TF: 67-68
2009-01-02	searchingforprimes	NF	no factor TF: 66-67
2009-01-02	Team_Deutschland	NF	no factor TF: 65-66
2008-12-19	ANONYMOUS	NF	no factor TF: 64-65
2008-09-22	-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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