55 154 819 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 =	800000
B2 =	24000000

Status	Date	User	Residue	Shift	Software
Bad	2012-07-13	Alexander Baras	C3A1B260C4C7985D	29769263	Windows 64-bit,Prime95,v27.3,build 1
Verified	2016-12-04	riccardo uberti	D4F65EACC8FEBEF4	46920807	Linux 64-bit,Prime95,v28.9,build 2
Verified	2016-12-11	ATH	D4F65EACC8FEBEF4	32742562	Windows 64-bit,Prime95,v28.9,build 2

History

Date	User	Type	Result
2016-12-11	ATH	C-LL	D4F65EACC8FEBEF4
2016-12-04	riccardo uberti	C-LL	D4F65EACC8FEBEF4
2016-11-16	riccardo uberti	NF-PM1	B1=800000, B2=24000000, E=12
2016-11-11	Bruno Victal	NF	no factor TF: 74-75
2016-11-11	Bruno Victal	NF	no factor TF: 73-74
2016-01-22	-anonymous-	NF	no factor TF: 72-73
2012-07-13	Alexander Baras	C-LL	C3A1B260C4C7985D
2012-06-19	megavink	NF	no factor TF: 71-72
2012-01-07	Nesowa	NF-PM1	B1=570000, B2=10830000
2011-05-30	shauge	NF	no factor TF: 70-71
2011-05-30	shauge	NF	no factor TF: 69-70
2011-04-05	Wayne_Yeung	NF	no factor TF: 68-69
2009-09-20	Dan Moody	NF	no factor TF: 67-68
2009-01-19	symalla	NF	no factor TF: 66-67
2009-01-10	symalla	NF	no factor TF: 65-66
2009-01-04	symalla	NF	no factor TF: 64-65
2008-09-01	-anonymous-	NF	no factor TF: 1-64
2002-06-29	-anonymous-	NF	no factor TF: 1-58
2001-09-10	-anonymous-	NF	no factor TF: 1-57
2000-05-24	-anonymous-	NF	no factor TF: 1-56
2000-03-01	-anonymous-	NF	no factor TF: 1-54
2000-01-12	-anonymous-	NF	no factor TF: 1-53
1999-12-08	-anonymous-	NF	no factor TF: 1-53

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