6 004 373 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
749729574045364732609786081	27	89.3	2017-09-22 12:02:02

ECM

Digits	B1	Curves
25	50000	6 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1999-03-15	Greg Skyles	087D6682CC537F01	0
Verified (Factored)	2000-12-14	Marc Honey	087D6682CC537F01	4092314
Verified (Factored)	2016-06-17	Vteam	087D6682CC537F01	5558469

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-12-16	Oliver Kruse	17FDD80DCE5FDFB7	1	3411384	5	3
Verified	2018-05-02	kkmrkkblmbrbk	17FDD80DCE5FDFB7	1	1265190	5	3

P-1 factors

Date	Factor	B1	B2
2017-09-22	749729574045364732609786081	1250000	50000000

History

Date	User	Type	Result
2018-05-02	kkmrkkblmbrbk	C-PRP	M6004373/749729574045364732609786081 : 17FDD80DCE5FDFB7 PRP: Verified PRP without proof (not generated)
2017-12-16	Oliver Kruse	C-PRP	M6004373/749729574045364732609786081 : 17FDD80DCE5FDFB7 PRP: Verified PRP without proof (not generated)
2017-09-22	mikr	F-PM1	Factor: 749729574045364732609786081 / (P-1, B1=1250000, B2=50000000, E=12)
2017-09-20	mikr	NF	no factor from 2^67 to 2^68
2016-06-17	Vteam	C-LL	087D6682CC537F01
2016-03-09	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-09-29	Bruno Victal	NF	no factor from 2^65 to 2^66
2014-01-05	lycorn	NF	no factor from 2^64 to 2^65
2014-01-05	kracker	NF	no factor from 2^63 to 2^64
2011-03-17	markr	NF-PM1	B1=110000, B2=2172500, E=6