3 201 917 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
3671193541165280394599	22	71.6	2021-03-28 18:32:53

ECM

Digits	B1	Curves
25	50000	42 / 280

Estimated T-Level: 20.8 ⓘ

TF below 2^64 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Brooks	83100B9186F3E7DC	0
Verified (Factored)	1999-10-21	Ronald M. Sorli	83100B9186F3E7DC	1692635

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-03-29	Hyeonseung Kwon	222D9E293C209F5B	1	1588564	5	3

History

Date	User	Type	Result
2022-09-12	Joss	NF-PM1	B1=1000000, B2=241175550
2022-03-11	Joss	NF-PM1	B1=1000000, B2=134343300
2021-03-30	Chad Steenerson	CERT	PRP Certification Proof certified good
2021-03-29	Hyeonseung Kwon	C-PRP	M3201917/3671193541165280394599 : 222D9E293C209F5B PRP proof power = 7 PRP: Verified Proof certified good
2021-03-28	Zenzoma	F-ECM	Factor: 3671193541165280394599 / (ECM curve 5, B1=50000, B2=5000000, Sigma=2645216320732435)
2021-01-27	ViliamF	NF	no factor from 2^68 to 2^69
2019-12-12	mikr	NF-PM1	B1=4000000, B2=150000000, E=12
2019-01-28	TJAOI	NF	no factor from 2^67 to 2^68
2018-07-24	Joss	NF-PM1	B1=400000, B2=4000000, E=6
2018-07-24	Joss	NF-PM1	B1=400000, B2=3067305
2018-07-20	Joss	NF-PM1	B1=400000, B2=1867305, E=6
2018-07-17	Joss	NF-PM1	B1=283461, B2=556922
2017-03-15	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-11-17	Squeeky_Squirrel	NF-PM1	B1=200000, B2=5550000, E=12
2015-06-21	Tha	NF	no factor from 2^65 to 2^66
2013-09-05	Squeeky_Squirrel	NF-PM1	B1=110000, B2=2557500, E=6
2012-11-26	lycorn	NF	no factor from 2^62 to 2^65
2008-11-20	Matthias Wurtinger	NF	no factor from 2^61 to 2^62
2008-11-20	Matthias Wurtinger	NF	no factor from 2^60 to 2^61