2 589 533 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite, with 1 known prime factor. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶³

Factored

Factor	Digits	Bits	Date
4665590420656181594436799	25	81.9	2016-08-14 15:20:09

P-1 factors

Date	Factors	B1	B2
2016-08-14	4665590420656181594436799	3200000	112000000

ECM

Digits	B1	Curves
25	50000	187 / 280

Estimated T-Level: 23.3 ⓘ

TF below 2^73 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift	Software
Factored		Gary Vedvik	ED918257267DFD44	0	Windows,Prime95,v14,(aka WQ1)
Factored	1999-06-06	Steve Nash	ED918257267DFD44	349200	Windows,Prime95,v17,(aka WT1)

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2017-10-15	Oliver Kruse	F8C35B0B2E9EBC1A	1	2259952	5	3
Verified	PRP without proof (not generated)	2017-12-02	storm5510	F8C35B0B2E9EBC1A	1	1696907	5	3

History

Date	User	Type	Result
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-12-02	storm5510	C-PRP	M2589533/4665590420656181594436799 : F8C35B0B2E9EBC1A
2017-10-15	Oliver Kruse	C-PRP	M2589533/4665590420656181594436799 : F8C35B0B2E9EBC1A
2016-08-14	mikr	F-PM1	Factor: 4665590420656181594436799 / B1=3200000, B2=112000000
2016-02-23	Mark Rose	NF	no factor TF: 59-60
2015-11-06	ramgeis	NF	no factor TF: 65-66
2015-02-27	VictordeHollander	NF	no factor TF: 64-65
2015-02-27	VictordeHollander	NF	no factor TF: 63-64
2013-01-14	dbaugh	NF	no factor TF: 62-63
2012-06-22	Sebastian Hornbostel	NF	no factor TF: 61-62
2011-02-21	James Heinrich	NF-PM1	B1=175000, B2=4112500, E=6
2011-01-13	Joss	NF-PM1	B1=50000
2010-11-15	Joss	NF-PM1	B1=20000
2009-02-01	Sturle Sunde	NF	no factor TF: 60-61
2003-11-08	Team Prime Rib	NF-PM1	B1=15000, B2=206250
2003-10-31	-anonymous-	NF-PM1	B1=2048, B2=204800
1999-06-06	-anonymous-	C-LL	ED918257267DFD44
1999-03-26	-anonymous-	NF	no factor TF: 1-59