435 179 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
2660166809735404988917780326311	31	101.1	2019-05-16 12:01:42

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	489 / 640

Estimated T-Level: 28.8 ⓘ

TF below 2^91 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	1768	0
Verified (Factored)		Jerry Williamson	2563B736701CD768	0
Verified (Factored)		Eivind Triel	2563B736701CD768	304938
Verified (Factored)	2002-02-03	Dennis Pope	2563B736701CD768	46310

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-05-17	Niels_Mache_Nextcloud	50E9B9FEB7ED6B6C	1	284872	5	3
Verified	2019-05-17	francijezek	50E9B9FEB7ED6B6C	1	271244	5	3
Verified	2019-05-17	marssystems	50E9B9FEB7ED6B6C	1	75711	5	3

History

Date	User	Type	Result
2019-05-17	marssystems	C-PRP	M435179/2660166809735404988917780326311 : 50E9B9FEB7ED6B6C PRP: Verified PRP without proof (small exponent)
2019-05-17	francijezek	C-PRP	M435179/2660166809735404988917780326311 : 50E9B9FEB7ED6B6C PRP: Verified PRP without proof (small exponent)
2019-05-17	Niels_Mache_Nextcloud	C-PRP	M435179/2660166809735404988917780326311 : 50E9B9FEB7ED6B6C PRP: Verified PRP without proof (small exponent)
2019-05-16	alex	F-ECM	Factor: 2660166809735404988917780326311 / (ECM curve 377, B1=250000, B2=25000000, Sigma=7435990162257685)
2018-12-19	Gordon Spence	NF	no factor from 2^65 to 2^66
2018-01-06	BloodERazor	NF	no factor from 2^64 to 2^65
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2015-11-15	Gordon Spence	NF	no factor from 2^63 to 2^64
2015-11-15	Gordon Spence	NF	no factor from 2^62 to 2^63
2012-12-01	dbaugh	NF	no factor from 2^61 to 2^62
2012-11-27	dbaugh	NF	no factor from 2^60 to 2^61
2012-09-10	markr	NF-PM1	B1=10000000, B2=400000000, E=12
2010-08-20	Rob_Dee	NF-PM1	B1=1000000, B2=2000000, E=6
2010-08-19	Rob_Dee	NF-PM1	B1=500000, B2=1000000
2009-08-26	Carsten Kossendey	NF-PM1	B1=435179