3 026 951 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
4743084652918815620891183	25	82.0	2021-04-10 05:38:25

ECM

Digits	B1	Curves
25	50000	64 / 280

Estimated T-Level: 21.1 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Bad		Dean McCully	8D3DB469C164293C	0
Verified (Factored)	1999-08-31	Mikko Tuumanen	E81036C2EF7C3232	1466702
Verified (Factored)	2001-02-11	Otto Bruggeman	E81036C2EF7C3232	2159399

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-04-12	Joe S.	F74CE07D85FCD85C	1	2042015	5	3

History

Date	User	Type	Result
2022-01-26	Joss	NF-PM1	B1=1000000, B2=119912100
2022-01-20	Joss	NF	no factor from 2^67 to 2^68
2021-04-12	curtisc	CERT	PRP Certification Proof certified good
2021-04-12	Joe S.	C-PRP	M3026951/4743084652918815620891183 : F74CE07D85FCD85C PRP proof power = 7 PRP: Verified Proof certified good
2021-04-10	Zenzoma	F-ECM	Factor: 4743084652918815620891183 / (ECM curve 7, B1=50000, B2=5000000, Sigma=2904880523917887)
2021-03-25	TJAOI	NF	no factor from 2^68 to 2^69
2020-01-29	oodaira	NF-PM1	B1=32656058, B2=1861395306, E=12
2018-07-16	ramgeis	NF	no factor from 2^67 to 2^68
2017-06-06	mikr	NF-PM1	B1=3000000, B2=100000000, E=12
2017-04-30	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-04-26	USAFSS	NF-PM1	B1=205000, B2=5637500, E=12
2015-06-02	Tha	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
2013-01-07	dbaugh	NF	no factor from 2^62 to 2^63
2010-10-13	markr	NF-PM1	B1=115000, B2=2357500, E=6
2010-10-06	Sid & Andy	NF	no factor from 2^61 to 2^62
2009-01-29	Jayson King	NF	no factor from 2^60 to 2^61