343 769 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
43179564113763090575142247679	29	95.1	2019-03-31 12:20:30

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	250 / 640

Estimated T-Level: 27.0 ⓘ

TF below 2^85 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	665	0
Verified (Factored)		Unknown	0665	0
Verified (Factored)		Guillermo Ballester Valor	E71E7630F18C0665	0
Verified (Factored)		Eivind Triel	E71E7630F18C0665	11189
Verified (Factored)	2002-01-22	Dennis Pope	E71E7630F18C0665	153902

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-04-01	artorollo	EC0E7B7ECCB304C7	1	11712	5	3
Verified	2019-04-01	ATH	EC0E7B7ECCB304C7	1	239122	5	3

History

Date	User	Type	Result
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2019-04-01	ATH	C-PRP	M343769/43179564113763090575142247679 : EC0E7B7ECCB304C7 PRP: Verified PRP without proof (small exponent)
2019-04-01	artorollo	C-PRP	M343769/43179564113763090575142247679 : EC0E7B7ECCB304C7 PRP: Verified PRP without proof (small exponent)
2019-03-31	alex	F-ECM	Factor: 43179564113763090575142247679 / (ECM curve 74, B1=250000, B2=25000000, Sigma=1284464092764154)
2018-02-16	Gordon Spence	NF	no factor from 2^64 to 2^65
2016-10-15	mikr	NF-PM1	B1=60000000, B2=3000000000, E=12
2015-12-17	Gordon Spence	NF	no factor from 2^63 to 2^64
2015-12-17	Gordon Spence	NF	no factor from 2^62 to 2^63
2015-07-25	NR	NF	no factor from 2^61 to 2^62
2013-06-12	Sid & Andy	NF	no factor from 2^60 to 2^61
2012-02-20	alpertron	NF-PM1	B1=10000000, B2=200000000, E=12
2011-08-14	Joss	NF-PM1	B1=1326497
2009-01-24	Sturle Sunde	NF	no factor from 2^59 to 2^60
2008-12-31	Sturle Sunde	NF	no factor from 2^58 to 2^59