2 595 589 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
2919364433325174202561	22	71.3	2021-01-05 08:27:16

ECM

Digits	B1	Curves
25	50000	89 / 280

Estimated T-Level: 21.6 ⓘ

TF below 2^67 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Cornelius Caesar	1787446170ADC640	0
Verified (Factored)	1998-02-12	Robert R. Fenichel	1787446170ADC640	0
Verified (Factored)	2015-11-14	MadPoo	1787446170ADC640	1604827

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-01-05	mrh	514F6C0889CD5368	1	2227665	5	3

History

Date	User	Type	Result
2021-01-05	Franklin Webber	CERT	PRP Certification Proof certified good
2021-01-05	mrh	C-PRP	M2595589/2919364433325174202561 : 514F6C0889CD5368 PRP proof power = 7 PRP: Verified Proof certified good
2021-01-05	rextherunt	F-ECM	Factor: 2919364433325174202561 / (ECM curve 7, B1=50000, B2=5000000)
2019-04-08	TJAOI	NF	no factor from 2^67 to 2^68
2018-11-24	mikr	NF-PM1	B1=3000000, B2=135000000, E=12
2018-08-17	Joss	NF-PM1	B1=600000, B2=6000000, E=6
2018-08-11	Joss	NF-PM1	B1=600000
2017-08-20	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^60
2015-11-14	MadPoo	C-LL	1787446170ADC640
2015-11-06	ramgeis	NF	no factor from 2^65 to 2^66
2015-02-27	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-27	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-14	dbaugh	NF	no factor from 2^62 to 2^63
2012-06-23	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-02-25	James Heinrich	NF-PM1	B1=300000, B2=8000000, E=12
2011-01-15	Joss	NF-PM1	B1=50000
2010-11-16	Joss	NF-PM1	B1=20000
2009-01-31	Sturle Sunde	NF	no factor from 2^60 to 2^61