57 639 271 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 =	530000
B2 =	9805000

Status	Date	User	Residue	Shift	Software
Verified	2013-07-17	curtisc	015C38EB3F67402F	15274804	Windows Service,Prime95,v27.7,build 2
Verified	2021-07-23	Dubslow	015C38EB3F67402F	223781	Linux 64-bit,Prime95,v29.8,build 6
Verified	2021-11-06	-anonymous-	015C38EB3F67402F	41675609	Windows,Prime95,v25.11,build 2

History

Date	User	Type	Result
2021-11-06	-anonymous-	C-LL	015C38EB3F67402F
2021-07-23	Dubslow	C-LL	015C38EB3F67402F
2021-07-07	frederikhk	NF	no factor TF: 74-75
2018-12-06	Chuck	NF	no factor TF: 73-74
2016-02-23	Mark Rose	NF	no factor TF: 60-63
2013-07-17	curtisc	C-LL	015C38EB3F67402F
2012-09-21	kagakubu	NF-PM1	B1=530000, B2=9805000
2012-08-28	Jerry Hallett	NF	no factor TF: 72-73
2011-11-25	TheJudger	NF	no factor TF: 71-72
2011-04-30	Ungelovende	NF	no factor TF: 70-71
2011-04-30	Ungelovende	NF	no factor TF: 69-70
2011-04-30	Ungelovende	NF	no factor TF: 68-69
2009-05-30	borgyg	NF	no factor TF: 67-68
2008-10-18	KYOJI_KAMEI	NF	no factor TF: 66-67
2008-10-16	Sturle Sunde	NF	no factor TF: 65-66
2008-10-15	Sturle Sunde	NF	no factor TF: 64-65
2008-10-14	Sturle Sunde	NF	no factor TF: 63-64
2003-08-25	Team Prime Rib	NF	no factor TF: 1-60
2002-11-24	-anonymous-	NF	no factor TF: 1-58
2001-09-30	-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
2000-03-08	-anonymous-	NF	no factor TF: 1-54
1999-12-23	-anonymous-	NF	no factor TF: 1-53

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