370 471 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
7757086467792939602541922103	28	92.6	2019-04-08 01:23:58

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	265 / 640

Estimated T-Level: 27.1 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	E18	0
Verified (Factored)		Chris Hall	8ACC34C11A9A0E18	0
Verified (Factored)		Eivind Triel	8ACC34C11A9A0E18	147528
Verified (Factored)	2002-01-02	Dennis Pope	8ACC34C11A9A0E18	76213

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-04-09	Chang Chia-Tche	FC24FD0CF58B716F	1	172159	5	3
Verified	2019-04-09	matzetoni	FC24FD0CF58B716F	1	241707	5	3
Verified	2019-04-10	kkmrkkblmbrbk	FC24FD0CF58B716F	1	139175	5	3

History

Date	User	Type	Result
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2019-04-10	kkmrkkblmbrbk	C-PRP	M370471/7757086467792939602541922103 : FC24FD0CF58B716F PRP: Verified PRP without proof (small exponent)
2019-04-09	matzetoni	C-PRP	M370471/7757086467792939602541922103 : FC24FD0CF58B716F PRP: Verified PRP without proof (small exponent)
2019-04-09	Chang Chia-Tche	C-PRP	M370471/7757086467792939602541922103 : FC24FD0CF58B716F PRP: Verified PRP without proof (small exponent)
2019-04-08	alex	F-ECM	Factor: 7757086467792939602541922103 / (ECM curve 15, B1=250000, B2=25000000, Sigma=3509810450618544)
2018-02-22	Gordon Spence	NF	no factor from 2^64 to 2^65
2018-02-09	BloodERazor	NF	no factor from 2^64 to 2^65
2016-12-08	mikr	NF-PM1	B1=60000000, B2=3000000000, E=12
2015-11-21	Gordon Spence	NF	no factor from 2^63 to 2^64
2015-11-21	Gordon Spence	NF	no factor from 2^62 to 2^63
2015-08-13	NR	NF	no factor from 2^61 to 2^62
2013-01-10	Sid & Andy	NF	no factor from 2^60 to 2^61
2012-08-02	alpertron	NF-PM1	B1=10000000, B2=200000000, E=12
2012-05-29	Joss	NF-PM1	B1=3611640
2012-03-05	Joss	NF-PM1	B1=1504850
2011-08-20	Joss	NF-PM1	B1=1203880
2009-01-23	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