50 355 973 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 =	595000
B2 =	16808750

Status	Date	User	Residue	Shift	Software
Verified	2010-08-20	ANONYMOUS	5B71FB88395893C8	14764853	Windows 64-bit,Prime95,v25.11,build 2
Verified	2019-12-06	Dubslow	5B71FB88395893C8	26568018	Linux 64-bit,Prime95,v29.8,build 6

History

Date	User	Type	Result
2019-12-06	Dubslow	C-LL	5B71FB88395893C8
2018-12-04	Mark Rose	NF	no factor TF: 73-74
2016-02-23	Mark Rose	NF	no factor TF: 60-63
2015-12-25	AirSquirrels	NF	no factor TF: 72-73
2015-12-04	-anonymous-	NF	no factor TF: 71-72
2015-07-22	Mark Rose	NF	no factor TF: 70-71
2015-01-20	monst	NF	no factor TF: 69-70
2010-08-20	ANONYMOUS	C-LL	5B71FB88395893C8
2010-07-14	ANONYMOUS	NF-PM1	B1=595000, B2=16808750, E=6
2008-10-14	tmorrow	NF	no factor TF: 68-69
2008-10-14	tmorrow	NF	no factor TF: 67-68
2008-10-14	tmorrow	NF	no factor TF: 66-67
2008-10-04	tmorrow	NF	no factor TF: 63-64
2008-10-04	tmorrow	NF	no factor TF: 64-65
2008-10-04	tmorrow	NF	no factor TF: 65-66
2003-11-08	-anonymous-	NF	no factor TF: 1-60
2003-08-25	-anonymous-	NF	no factor TF: 1-59
2001-12-22	-anonymous-	NF	no factor TF: 1-58
2001-04-15	-anonymous-	NF	no factor TF: 1-57
2000-04-05	-anonymous-	NF	no factor TF: 1-56
2000-02-09	-anonymous-	NF	no factor TF: 1-54
2000-01-04	-anonymous-	NF	no factor TF: 1-53
1999-10-07	-anonymous-	NF	no factor TF: 1-53

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