2 595 979 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
47335150391368402481195399	26	85.3	2018-11-28 00:27:22

ECM

Digits	B1	Curves
25	50000	30 / 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)		Mark E. Deardorff	6474FE065A093D11	0
Verified (Factored)	1998-02-12	Robert R. Fenichel	6474FE065A093D11	0
Verified (Factored)	1999-03-26	David Phillips	6474FE065A093D11	2197773

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-11-28	rucio	52BF9E3D3770C959	1	915168	5	3
Verified	2018-11-28	ATH	52BF9E3D3770C959	1	1231083	5	3

P-1 factors

Date	Factor	B1	B2
2018-11-28	47335150391368402481195399	3000000	135000000

History

Date	User	Type	Result
2018-11-28	ATH	C-PRP	M2595979/47335150391368402481195399 : 52BF9E3D3770C959 PRP: Verified PRP without proof (not generated)
2018-11-28	rucio	C-PRP	M2595979/47335150391368402481195399 : 52BF9E3D3770C959 PRP: Verified PRP without proof (not generated)
2018-11-28	mikr	F-PM1	Factor: 47335150391368402481195399 / (P-1, B1=3000000, B2=135000000, E=12)
2018-07-08	Joss	NF-PM1	B1=600000, B2=6000000, E=6
2017-08-21	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
2015-11-06	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