56 085 823 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 =	590000
B2 =	13127500

Status	Date	User	Residue	Shift	Software
Verified	2012-02-17	trimix	39D4224DE139B1C6	29961673	Windows 64-bit,Prime95,v26.6,build 3
Verified	2021-05-05	Dubslow	39D4224DE139B1C6	45583556	Linux 64-bit,Prime95,v29.8,build 6

History

Date	User	Type	Result
2021-05-05	Dubslow	C-LL	39D4224DE139B1C6
2019-02-03	TheJudger	NF	no factor TF: 73-74
2016-02-23	Mark Rose	NF	no factor TF: 60-63
2016-01-08	-anonymous-	NF	no factor TF: 72-73
2015-11-27	Mark Rose	NF	no factor TF: 71-72
2012-02-17	trimix	C-LL	39D4224DE139B1C6
2012-01-26	trimix	NF-PM1	B1=590000, B2=13127500
2011-04-19	steinrar	NF	no factor TF: 70-71
2011-04-19	steinrar	NF	no factor TF: 69-70
2011-04-19	steinrar	NF	no factor TF: 68-69
2009-09-19	-anonymous-	NF	no factor TF: 67-68
2008-06-21	Sturle Sunde	NF	no factor TF: 66-67
2008-06-20	Sturle Sunde	NF	no factor TF: 65-66
2008-06-19	Sturle Sunde	NF	no factor TF: 64-65
2008-06-17	Sturle Sunde	NF	no factor TF: 63-64
2004-09-16	1997rj7	NF	no factor TF: 1-60
2002-08-31	-anonymous-	NF	no factor TF: 1-58
2001-09-16	-anonymous-	NF	no factor TF: 1-57
2000-05-31	-anonymous-	NF	no factor TF: 1-56
2000-03-01	-anonymous-	NF	no factor TF: 1-54
2000-01-19	-anonymous-	NF	no factor TF: 1-53
1999-12-08	-anonymous-	NF	no factor TF: 1-53

Username
Password