2 647 079 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
6980165136683844820577	22	72.6	2020-08-03 05:17:04

ECM

Digits	B1	Curves
25	50000	44 / 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)		Danny van der Rijn	F3FBD031EAC6D58E	0
Verified (Factored)	1999-05-23	Oakwood Friends School	F3FBD031EAC6D58E	1454218
Verified (Factored)	2018-07-16	kkmrkkblmbrbk	F3FBD031EAC6D58E	994538

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-08-03	M Miller	20C28197E9A2FC90	1	2009913	5	3
Verified	2020-08-04	marssystems	20C28197E9A2FC90	1	2138511	5	3

History

Date	User	Type	Result
2020-08-04	marssystems	C-PRP	M2647079/6980165136683844820577 : 20C28197E9A2FC90 PRP: Verified PRP without proof (not generated)
2020-08-03	M Miller	C-PRP	M2647079/6980165136683844820577 : 20C28197E9A2FC90 PRP: Verified PRP without proof (not generated)
2020-08-03	GAN	F-ECM	Factor: 6980165136683844820577 / (ECM curve 2, B1=50000, B2=5000000, Sigma=8214932703327050)
2019-11-28	masser	NF-PM1	B1=2000000, B2=50000000, E=12
2019-02-25	TJAOI	NF	no factor from 2^67 to 2^68
2018-07-16	kkmrkkblmbrbk	C-LL	F3FBD031EAC6D58E
2017-09-08	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-05-08	Joss	NF-PM1	B1=360000, B2=3600000, E=6
2016-12-29	Joss	NF-PM1	B1=206385
2016-12-27	Joss	NF-PM1	B1=171988
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^60
2016-01-21	ramgeis	NF	no factor from 2^65 to 2^66
2015-02-23	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-23	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-14	dbaugh	NF	no factor from 2^62 to 2^63
2012-06-11	markr	NF	no factor from 2^61 to 2^62
2011-01-20	James Heinrich	NF-PM1	B1=180000, B2=4275000, E=6
2009-06-22	USAFSS	NF-PM1	B1=30000, B2=420000
2009-01-30	Sturle Sunde	NF	no factor from 2^60 to 2^61