394 007 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
12659799288222961894716610657	29	93.4	2019-04-16 03:40:39

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	594 / 640

Estimated T-Level: 29.6 ⓘ

TF below 2^93 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		John Sweeney	CB1	0
Verified (Factored)		David Slowinski	2CB1	0
Verified (Factored)		Guillermo Ballester Valor	4DAF9E9D3D77ACB1	0
Verified (Factored)		Eivind Triel	4DAF9E9D3D77ACB1	140535
Verified (Factored)	2001-12-22	Dennis Pope	4DAF9E9D3D77ACB1	69219

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-04-17	artorollo	6EF543BD1AEFFF34	1	380941	5	3
Verified	2019-04-17	ATH	6EF543BD1AEFFF34	1	112256	5	3
Verified	2019-04-17	matzetoni	6EF543BD1AEFFF34	1	100597	5	3

History

Date	User	Type	Result
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2019-04-30	Gordon Spence	NF	no factor from 2^65 to 2^66
2019-04-17	matzetoni	C-PRP	M394007/12659799288222961894716610657 : 6EF543BD1AEFFF34 PRP: Verified PRP without proof (small exponent)
2019-04-17	ATH	C-PRP	M394007/12659799288222961894716610657 : 6EF543BD1AEFFF34 PRP: Verified PRP without proof (small exponent)
2019-04-17	artorollo	C-PRP	M394007/12659799288222961894716610657 : 6EF543BD1AEFFF34 PRP: Verified PRP without proof (small exponent)
2019-04-16	alex	F-ECM	Factor: 12659799288222961894716610657 / (ECM curve 344, B1=250000, B2=25000000, Sigma=3527999523170675)
2018-01-18	BloodERazor	NF	no factor from 2^64 to 2^65
2017-01-21	mikr	NF-PM1	B1=60000000, B2=3000000000, E=12
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
2012-07-18	alpertron	NF-PM1	B1=10000000, B2=200000000, E=12
2011-02-27	monst	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