3 474 619 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
4325573680639228324946929	25	81.8	2021-04-05 01:14:49

ECM

Digits	B1	Curves
25	50000	17 / 280

Estimated T-Level: 20.3 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Roel Bergsma	3D368C630DE3AF32	0
Verified (Factored)	1999-08-07	Peter Murphy	3D368C630DE3AF32	2839035

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-04-08	Zero	EADE7B93F7FB5A22	1	2359846	5	3

History

Date	User	Type	Result
2022-04-10	Joss	NF-PM1	B1=1000000, B2=126668850
2021-04-08	Derek	CERT	PRP Certification Proof certified good
2021-04-08	Zero	C-PRP	M3474619/4325573680639228324946929 : EADE7B93F7FB5A22 PRP proof power = 7 PRP: Verified Proof certified good
2021-04-05	daveward2005	F-ECM	Factor: 4325573680639228324946929 / (ECM curve 2, B1=50000, B2=5000000, Sigma=5348464674608205)
2021-01-09	axn	NF	no factor from 2^68 to 2^69
2018-12-10	TJAOI	NF	no factor from 2^67 to 2^68
2017-02-16	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-01-05	ramgeis	NF	no factor from 2^65 to 2^66
2015-02-07	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-07	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-09-26	HBendtz	NF-PM1	B1=500000, B2=10000000, E=12
2014-08-21	Joss	NF-PM1	B1=78472
2012-08-18	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-11-12	USAFSS	NF-PM1	B1=60000, B2=990000, E=6
2011-07-21	Grant McCracken	NF	no factor from 2^61 to 2^62
2009-07-07	Carsten Kossendey	NF-PM1	B1=20000, B2=240000
2009-03-20	S485122	NF	no factor from 2^60 to 2^61