69 470 263 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite: proven not-prime with Lucas-Lehmer test

No factors below 2⁷⁵

TF target 2⁷⁴

P-1

B1 =	630000
B2 =	13072500

Status	Date	User	Residue	Shift	Software
Verified	2015-10-09	heyen	83B1977282CCDBCD	59882888	Windows 64-bit,Prime95,v28.5,build 2
Verified	2024-07-01	kdelisle2005	83B1977282CCDBCD	66384876	Linux 64-bit,Prime95,v30.8,build 18

History

Date	User	Type	Result
2024-07-01	kdelisle2005	C-LL	83B1977282CCDBCD
2016-03-30	Mark Rose	NF	no factor TF: 62-64
2015-10-09	heyen	C-LL	83B1977282CCDBCD
2015-06-24	electron1897	NF	no factor TF: 74-75
2013-10-06	TheJudger	NF-PM1	B1=630000, B2=13072500, E=12
2013-09-27	Jerry Hallett	NF	no factor TF: 73-74
2013-04-13	Kyle Askine	NF	no factor TF: 72-73
2013-04-13	Kyle Askine	NF	no factor TF: 71-72
2013-04-13	Kyle Askine	NF	no factor TF: 70-71
2013-04-12	Kyle Askine	NF	no factor TF: 69-70
2010-03-06	Perendie	NF	no factor TF: 68-69
2010-03-02	Perendie	NF	no factor TF: 67-68
2010-02-26	Perendie	NF	no factor TF: 66-67
2010-02-25	PVasilev	NF	no factor TF: 65-66
2010-02-20	Dirk-HRO	NF	no factor TF: 64-65
2004-01-18	-anonymous-	NF	no factor TF: 1-62
2001-01-08	Joss	NF	no factor TF: 1-56
2000-09-29	Joss	NF	no factor TF: 1-54
2000-09-23	Joss	NF	no factor TF: 1-52