285 139 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
130694295126341322287527289959	30	96.7	2019-05-09 18:40:59

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	500 / 640

Estimated T-Level: 28.9 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	35D	0
Verified (Factored)		Unknown	035D	0
Verified (Factored)		Brian J. Beesley	F8406F4E3B23035D	0
Verified (Factored)		Eivind Triel	F8406F4E3B23035D	258727
Verified (Factored)	2002-03-03	Brian J. Beesley	F8406F4E3B23035D	60606

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-05-09	ATH	16DDE52480E0CC71	1	161008	5	3
Verified	2019-05-10	kkmrkkblmbrbk	16DDE52480E0CC71	1	9900	5	3

P-1 factors

Date	Factor	B1	B2
2019-05-09	130694295126341322287527289959	100000000	2000000000

History

Date	User	Type	Result
2023-02-06	Kevin_9611	NF-PM1	B1=10000000, B2=101194673580
2023-02-05	Kevin_9611	NF-PM1	B1=5000000, B2=21465474030
2023-02-04	Kevin_9611	NF-PM1	B1=1500000, B2=10732691970
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2019-05-10	kkmrkkblmbrbk	C-PRP	M285139/130694295126341322287527289959 : 16DDE52480E0CC71 PRP: Verified PRP without proof (small exponent)
2019-05-09	ATH	C-PRP	M285139/130694295126341322287527289959 : 16DDE52480E0CC71 PRP: Verified PRP without proof (small exponent)
2019-05-09	alex	F-PM1	Factor: 130694295126341322287527289959 / (P-1, B1=100000000, B2=2000000000, E=12)
2018-03-29	BloodERazor	NF	no factor from 2^64 to 2^65
2018-03-29	Gordon Spence	NF	no factor from 2^64 to 2^65
2016-01-06	Gordon Spence	NF	no factor from 2^63 to 2^64
2016-01-06	Gordon Spence	NF	no factor from 2^62 to 2^63
2015-08-13	NR	NF	no factor from 2^61 to 2^62
2013-06-24	lycorn	NF	no factor from 2^60 to 2^61
2012-08-08	-Anonymous-	NF-PM1	B1=10000000, B2=500000000, E=12
2012-08-06	markr	NF-PM1	B1=10000000, B2=400000000, E=12
2011-02-19	Joss	NF-PM1	B1=2000000
2009-01-24	Sturle Sunde	NF	no factor from 2^59 to 2^60
2009-01-02	Sturle Sunde	NF	no factor from 2^58 to 2^59