56 365 759 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 =	560000
B2 =	11620000

Status	Date	User	Residue	Shift	Software
Verified	2015-03-09	Maddin	9361B803F6719653	7540627	Windows 64-bit,Prime95,v28.5,build 2
Verified	2021-05-25	Dubslow	9361B803F6719653	50486054	Linux 64-bit,Prime95,v29.8,build 6

History

Date	User	Type	Result
2021-05-25	Dubslow	C-LL	9361B803F6719653
2016-02-23	Mark Rose	NF	no factor TF: 58-63
2015-03-09	Maddin	C-LL	9361B803F6719653
2014-09-21	brilong	NF	no factor TF: 73-74
2014-01-10	kdgehman	NF	no factor TF: 72-73
2012-07-16	Koekie	NF-PM1	B1=560000, B2=11620000
2012-07-02	Jerry Hallett	NF	no factor TF: 71-72
2011-08-27	Al Airone	NF	no factor TF: 70-71
2011-06-15	megavink	NF	no factor TF: 69-70
2011-04-15	Chris Vernieri	NF	no factor TF: 68-69
2009-11-20	-anonymous-	NF	no factor TF: 67-68
2008-07-21	Sturle Sunde	NF	no factor TF: 66-67
2008-07-21	Sturle Sunde	NF	no factor TF: 65-66
2008-07-21	Sturle Sunde	NF	no factor TF: 64-65
2008-07-20	Sturle Sunde	NF	no factor TF: 63-64
2002-09-29	-anonymous-	NF	no factor TF: 1-58
2001-09-22	-anonymous-	NF	no factor TF: 1-57
2000-06-11	-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
1999-12-15	-anonymous-	NF	no factor TF: 1-53

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