70 824 283 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 =	645000
B2 =	13222500

Status	Date	User	Residue	Shift	Software
Verified	2017-01-11	Chun sung soo	7AC3108ED46658C4	12232976	Windows 64-bit,Prime95,v28.10,build 1
Verified	2024-08-25	dburke	7AC3108ED46658C4	68193392	Linux 64-bit,Prime95,v29.8,build 6

History

Date	User	Type	Result
2024-08-25	dburke	C-LL	7AC3108ED46658C4
2017-01-11	Chun sung soo	C-LL	7AC3108ED46658C4
2016-05-25	-anonymous-	NF	no factor TF: 74-75
2014-12-07	TheJudger	NF-PM1	B1=645000, B2=13222500, E=6
2014-11-23	TheJudger	NF	no factor TF: 73-74
2014-11-23	TheJudger	NF	no factor TF: 72-73
2014-04-13	Risto A. Paju	NF	no factor TF: 71-72
2014-04-13	Risto A. Paju	NF	no factor TF: 70-71
2012-05-07	tmorrow	NF	no factor TF: 69-70
2010-05-12	John Tolly	NF	no factor TF: 68-69
2010-05-09	John Tolly	NF	no factor TF: 67-68
2010-05-07	John Tolly	NF	no factor TF: 66-67
2010-05-05	John Tolly	NF	no factor TF: 65-66
2010-04-30	oodaira	NF	no factor TF: 64-65
2008-11-19	Wojciech Florek	NF	no factor TF: 1-64
2007-11-17	Amperio	NF	no factor TF: 1-63