3 269 081 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
2968716720867666105012241	25	81.3	2021-01-21 03:05:13

ECM

Digits	B1	Curves
25	50000	27 / 280

Estimated T-Level: 20.5 ⓘ

TF below 2^63 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Joseph Huang	D91A6669A06E4916	0
Verified (Factored)	1999-11-17	Simon Fietze	D91A6669A06E4916	1860947

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-01-21	mrh	D0C0CB233A0D2138	1	173210	5	3

History

Date	User	Type	Result
2022-09-12	Joss	NF-PM1	B1=1000000, B2=241152450
2022-04-05	Joss	NF-PM1	B1=1000000, B2=134316000
2021-01-21	Architects Cubed	CERT	PRP Certification Proof certified good
2021-01-21	mrh	C-PRP	M3269081/2968716720867666105012241 : D0C0CB233A0D2138 PRP proof power = 7 PRP: Verified Proof certified good
2021-01-21	axn	F-ECM	Factor: 2968716720867666105012241 / (ECM curve 4, B1=80000, B2=11280000, Sigma=1051236574256517)
2020-11-27	mikr	NF-PM1	B1=4000000, B2=150000000, E=12
2018-12-17	TJAOI	NF	no factor from 2^67 to 2^68
2017-04-04	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-01-16	Joss	NF-PM1	B1=378000, B2=3780000, E=6
2015-06-28	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
2014-10-10	Joss	NF-PM1	B1=99268
2014-06-26	-Anonymous-	NF-PM1	B1=79634
2013-01-03	dbaugh	NF	no factor from 2^62 to 2^63
2011-09-26	Grant McCracken	NF	no factor from 2^61 to 2^62
2011-09-18	USAFSS	NF-PM1	B1=60000, B2=1050000, E=6
2009-07-08	Carsten Kossendey	NF-PM1	B1=15000, B2=191250
2009-04-03	S485122	NF	no factor from 2^60 to 2^61