3 833 009 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
6860490792869448265207	22	72.5	2016-03-24 14:22:43

ECM

Digits	B1	Curves
25	50000	8 / 280

Estimated T-Level: 20.1 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)	1998-07-11	Kevin Urciolo	C3BD8220224415B1	0
Verified (Factored)	1999-09-14	Brad Lane	C3BD8220224415B1	2185230

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-20	kkmrkkblmbrbk	AF61D76F54F6CF33	1	0	1	3
Verified	2017-12-17	Oliver Kruse	AF61D76F54F6CF33	1	3416259	1	3

History

Date	User	Type	Result
2022-05-25	Joss	NF-PM1	B1=200000, B2=130364850
2020-10-02	Joss	NF-PM1	B1=383300, B2=3833009, E=6
2017-12-17	Oliver Kruse	C-PRP	M3833009/6860490792869448265207 : AF61D76F54F6CF33 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M3833009/6860490792869448265207 : AF61D76F54F6CF33 PRP: Verified PRP without proof (not generated)
2016-03-24	Sid & Andy	F-ECM	Factor: 6860490792869448265207 / (ECM curve 2, B1=50000, B2=5000000)
2016-03-07	ramgeis	NF	no factor from 2^65 to 2^66
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-02-17	Joss	NF-PM1	B1=219542, B2=2195420, E=6
2015-01-18	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-01-18	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-17	Joss	NF-PM1	B1=86745
2012-04-20	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-10-30	Squeeky_Squirrel	NF-PM1	B1=70000, B2=1137500, E=6
2011-03-09	markr	NF	no factor from 2^61 to 2^62
2009-07-27	Carsten Kossendey	NF-PM1	B1=20000, B2=270000
2009-02-26	S485122	NF	no factor from 2^60 to 2^61