56 630 267 Exponent Status

PrimeNet Exponent Status

M_n

Details

Composite: proven not-prime with Lucas-Lehmer test

No factors below 2⁷⁵

TF target 2⁷³

P-1

B1 =	1500000
B2 =	30000000

Status	Date	User	Residue	Shift	Software
Verified	2012-10-02	Cire Sivad	354907D5E2437E6F	20793805	Windows,Prime95,v27.7,build 2
Bad	2021-06-09	roemer2201	CDEC2D85B8085043	30128270	Windows 64-bit,Prime95,v29.8,build 5
Verified	2021-06-20	Dubslow	354907D5E2437E6F	40275092	Linux 64-bit,Prime95,v29.8,build 6

History

Date	User	Type	Result
2021-06-20	Dubslow	C-LL	354907D5E2437E6F
2021-06-09	roemer2201	C-LL	CDEC2D85B8085043
2020-04-26	Sid & Andy	NF-PM1	B1=1500000, B2=30000000
2020-03-13	Sid & Andy	NF	no factor TF: 74-75
2018-11-05	Chuck	NF	no factor TF: 73-74
2012-10-02	Cire Sivad	C-LL	354907D5E2437E6F
2012-09-17	monst	NF-PM1	B1=535000, B2=10967500, E=6
2012-09-04	ktony	NF	no factor TF: 71-73
2011-09-15	tmorrow	NF	no factor TF: 70-71
2011-06-15	megavink	NF	no factor TF: 69-70
2011-04-20	Per Jessen	NF	no factor TF: 68-69
2009-05-22	-anonymous-	NF	no factor TF: 67-68
2008-08-01	Sturle Sunde	NF	no factor TF: 66-67
2008-08-01	Sturle Sunde	NF	no factor TF: 65-66
2008-07-31	Sturle Sunde	NF	no factor TF: 64-65
2008-07-31	Sturle Sunde	NF	no factor TF: 63-64
2004-10-03	ThomRuley	NF	no factor TF: 1-63
2004-02-07	ThomRuley	NF	no factor TF: 1-61
2004-01-27	ThomRuley	NF	no factor TF: 1-61
2002-10-19	-anonymous-	NF	no factor TF: 1-58
2001-09-22	-anonymous-	NF	no factor TF: 1-57
2000-06-29	-anonymous-	NF	no factor TF: 1-56
2000-06-28	-anonymous-	NF	no factor TF: 1-56
2000-06-26	-anonymous-	NF	no factor TF: 1-56
2000-03-08	-anonymous-	NF	no factor TF: 1-54
2000-01-19	-anonymous-	NF	no factor TF: 1-53
1999-12-23	-anonymous-	NF	no factor TF: 1-53

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