50 821 051 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 =	605000
B2 =	16788750

Status	Date	User	Residue	Shift	Software
Verified	2010-05-15	blactuary	8E1CFE5BAF7F3263	40994109	Windows 64-bit,Prime95,v25.9,build 4
Verified	2020-05-18	Dubslow	8E1CFE5BAF7F3263	27732471	Linux 64-bit,Prime95,v29.8,build 6

History

Date	User	Type	Result
2020-05-18	Dubslow	C-LL	8E1CFE5BAF7F3263
2018-09-30	Mark Rose	NF	no factor TF: 73-74
2016-02-02	AirSquirrels	NF	no factor TF: 72-73
2015-11-23	AirSquirrels	NF	no factor TF: 71-72
2015-06-26	Mark Rose	NF	no factor TF: 70-71
2015-01-22	monst	NF	no factor TF: 69-70
2010-05-15	blactuary	C-LL	8E1CFE5BAF7F3263
2009-06-25	dgriffie79	NF	no factor TF: 68-69
2009-06-22	dgriffie79	NF	no factor TF: 67-68
2009-04-16	chriz2001	NF-PM1	B1=605000, B2=16788750
2008-12-02	Sturle Sunde	NF	no factor TF: 66-67
2008-11-30	Sturle Sunde	NF	no factor TF: 65-66
2008-11-28	Sturle Sunde	NF	no factor TF: 64-65
2008-09-27	Derek	NF	no factor TF: 1-64
2007-03-20	James Heinrich	NF	no factor TF: 1-63
2003-11-08	-anonymous-	NF	no factor TF: 1-60
2003-08-31	-anonymous-	NF	no factor TF: 1-59
2003-08-25	-anonymous-	NF	no factor TF: 1-59
2002-01-22	-anonymous-	NF	no factor TF: 1-58
2001-04-21	-anonymous-	NF	no factor TF: 1-57
2000-04-19	-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
1999-10-15	-anonymous-	NF	no factor TF: 1-53

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