2 612 719 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
18675675861828583070089	23	74.0	2020-07-06 04:58:16

ECM

Digits	B1	Curves
25	50000	35 / 280

Estimated T-Level: 20.6 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Jack B Sippel II	21E061A1774B614D	0
Verified (Factored)		Calkins	21E061A1774B614D	0
Verified (Factored)	1999-04-02	Chris Maurice	21E061A1774B614D	1469064

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-07-06	M Miller	24CF36173E3E8F87	1	1814733	5	3
Verified	2020-07-07	marssystems	24CF36173E3E8F87	1	1293986	5	3

History

Date	User	Type	Result
2020-07-07	marssystems	C-PRP	M2612719/18675675861828583070089 : 24CF36173E3E8F87 PRP: Verified PRP without proof (not generated)
2020-07-06	M Miller	C-PRP	M2612719/18675675861828583070089 : 24CF36173E3E8F87 PRP: Verified PRP without proof (not generated)
2020-07-06	GAN	F-ECM	Factor: 18675675861828583070089 / (ECM curve 2, B1=50000, B2=5000000, Sigma=6215303962816393)
2019-10-14	masser	NF-PM1	B1=2612719, B2=26127190, E=12
2019-04-29	TJAOI	NF	no factor from 2^67 to 2^68
2017-08-28	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-07-10	Joss	NF-PM1	B1=400000, B2=4000000, E=6
2016-05-23	Joss	NF-PM1	B1=200000, B2=3600000, E=6
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^60
2016-01-16	ramgeis	NF	no factor from 2^65 to 2^66
2015-02-18	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-18	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-12	Joss	NF-PM1	B1=124566
2013-01-14	dbaugh	NF	no factor from 2^62 to 2^63
2012-06-26	Grant McCracken	NF	no factor from 2^61 to 2^62
2010-12-14	markr	NF-PM1	B1=100000, B2=2125000, E=6
2010-11-17	Joss	NF-PM1	B1=20000
2009-01-30	Sturle Sunde	NF	no factor from 2^60 to 2^61