396 679 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
11499483715226768239111986449	29	93.2	2019-04-16 19:14:07

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	392 / 640

Estimated T-Level: 28.1 ⓘ

TF below 2^88 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	57C6	0
Verified (Factored)		Klaus Kastens	F32D1CC6ADD557C6	0
Verified (Factored)		Bo Asklund	F32D1CC6ADD557C6	0
Verified (Factored)		Eivind Triel	F32D1CC6ADD557C6	321557
Verified (Factored)	2016-06-01	MadPoo	F32D1CC6ADD557C6	205511

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-04-17	artorollo	EBA51E4F0B4A38AF	1	388560	5	3
Verified	2019-04-17	matzetoni	EBA51E4F0B4A38AF	1	957	5	3
Verified	2019-04-18	marssystems	EBA51E4F0B4A38AF	1	309668	5	3

History

Date	User	Type	Result
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2019-05-02	Gordon Spence	NF	no factor from 2^65 to 2^66
2019-04-18	marssystems	C-PRP	M396679/11499483715226768239111986449 : EBA51E4F0B4A38AF PRP: Verified PRP without proof (small exponent)
2019-04-17	matzetoni	C-PRP	M396679/11499483715226768239111986449 : EBA51E4F0B4A38AF PRP: Verified PRP without proof (small exponent)
2019-04-17	artorollo	C-PRP	M396679/11499483715226768239111986449 : EBA51E4F0B4A38AF PRP: Verified PRP without proof (small exponent)
2019-04-16	alex	F-ECM	Factor: 11499483715226768239111986449 / (ECM curve 129, B1=250000, B2=25000000, Sigma=4245758040164785)
2018-01-18	BloodERazor	NF	no factor from 2^64 to 2^65
2017-01-23	mikr	NF-PM1	B1=60000000, B2=3000000000, E=12
2016-06-01	MadPoo	C-LL	F32D1CC6ADD557C6
2015-11-19	Gordon Spence	NF	no factor from 2^63 to 2^64
2015-11-19	Gordon Spence	NF	no factor from 2^62 to 2^63
2015-08-13	NR	NF	no factor from 2^61 to 2^62
2012-07-09	alpertron	NF-PM1	B1=10000000, B2=200000000, E=12
2011-11-12	lycorn	NF	no factor from 2^60 to 2^61
2009-01-10	Sturle Sunde	NF	no factor from 2^59 to 2^60
2009-01-06	Sturle Sunde	NF	no factor from 2^58 to 2^59