1 808 459 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
769559791620083485647061961043142009	36	119.2	2021-07-14 08:30:55

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Conor Cunningham	73026144579AD3DC	0
Verified (Factored)	1999-03-15	John B. Meaders,Jr.	73026144579AD3DC	656301
Verified (Factored)	2015-07-18	MadPoo	73026144579AD3DC	1727858

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-07-14	SRJ2877	2B2E3F3322A40FF2	1	1789653	5	3

P-1 factors

Date	Factor	B1	B2
2021-07-14	769559791620083485647061961043142009	3000000	393000000

History

Date	User	Type	Result
2021-07-14	Ben Delo	CERT	PRP Certification Proof certified good
2021-07-14	SRJ2877	C-PRP	M1808459/769559791620083485647061961043142009 : 2B2E3F3322A40FF2 PRP proof power = 7 PRP: Verified Proof certified good
2021-07-14	Dylan Delgado	F-PM1	Factor: 769559791620083485647061961043142009 / (P-1, B1=3000000, B2=393000000)
2019-06-24	TJAOI	NF	no factor from 2^67 to 2^68
2018-09-19	Joss	NF-PM1	B1=1808459, B2=180845900, E=12
2018-04-30	TJAOI	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2016-02-23	Mark Rose	NF	no factor from 2^61 to 2^62
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-09-01	ramgeis	NF	no factor from 2^65 to 2^66
2015-07-18	MadPoo	C-LL	73026144579AD3DC
2015-05-09	mikr	NF-PM1	B1=2780000, B2=91760000, E=12
2015-04-21	snme2pm1	NF	no factor from 2^64 to 2^65
2015-04-21	snme2pm1	NF	no factor from 2^63 to 2^64
2014-09-20	Joss	NF-PM1	B1=170982
2014-05-12	Joss	NF-PM1	B1=135491
2011-02-10	Carsten Kossendey	NF-PM1	B1=100000, B2=1650000, E=6
2011-01-21	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-04-13	Architects Cubed	NF	no factor from 2^60 to 2^61