3 287 941 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
16129992814418157428449	23	73.8	2021-06-30 13:28:33

ECM

Digits	B1	Curves
25	50000	49 / 280

Estimated T-Level: 20.9 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)	1998-02-19	Seth Chazanoff	AAE37C47F278309A	0
Verified (Factored)	1999-08-16	George Ray	AAE37C47F278309A	3057341

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-07-02	RichD0	6EABB3378275FC3D	1	1162086	5	3

History

Date	User	Type	Result
2022-09-12	Joss	NF-PM1	B1=1000000, B2=241152450
2022-04-02	Joss	NF-PM1	B1=1000000, B2=134316000
2021-07-02	Dr. Dwayne	CERT	PRP Certification Proof certified good
2021-07-02	RichD0	C-PRP	M3287941/16129992814418157428449 : 6EABB3378275FC3D PRP proof power = 5 PRP: Verified Proof certified good
2021-06-30	Sergey Nosov	F-ECM	Factor: 16129992814418157428449 / (ECM curve 5, B1=50000, B2=5000000)
2021-04-10	mikr	NF-PM1	B1=4000000, B2=150000000, E=12
2018-11-19	TJAOI	NF	no factor from 2^67 to 2^68
2017-04-07	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-01-26	Joss	NF-PM1	B1=383400, B2=3834000, E=6
2015-06-29	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=99042
2014-06-26	-Anonymous-	NF-PM1	B1=79521
2012-12-30	dbaugh	NF	no factor from 2^62 to 2^63
2011-09-26	markr	NF	no factor from 2^61 to 2^62
2011-09-23	USAFSS	NF-PM1	B1=60000, B2=1065000, E=6
2009-07-09	Carsten Kossendey	NF-PM1	B1=15000, B2=191250
2009-04-02	S485122	NF	no factor from 2^60 to 2^61