2 541 047 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
601360296603285869017	21	69.0	2020-06-01 10:08:53

ECM

Digits	B1	Curves
25	50000	34 / 280

Estimated T-Level: 20.6 ⓘ

TF below 2^63 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Thomas Honold	12639AD4DEE06C51	0
Verified (Factored)	1999-04-13	Andy Kohler	12639AD4DEE06C51	750965
Verified (Factored)	2018-06-09	kkmrkkblmbrbk	12639AD4DEE06C51	813903

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-06-01	M Miller	EFFA3D457435899A	1	1921354	5	3
Verified	2020-06-02	marssystems	EFFA3D457435899A	1	1611346	5	3

History

Date	User	Type	Result
2020-06-02	marssystems	C-PRP	M2541047/601360296603285869017 : EFFA3D457435899A PRP: Verified PRP without proof (not generated)
2020-06-01	M Miller	C-PRP	M2541047/601360296603285869017 : EFFA3D457435899A PRP: Verified PRP without proof (not generated)
2020-06-01	Sergey Nosov	F-ECM	Factor: 601360296603285869017 / (ECM curve 1, B1=50000, B2=5000000)
2019-04-22	TJAOI	NF	no factor from 2^67 to 2^68
2018-09-05	mikr	NF-PM1	B1=3000000, B2=135000000, E=12
2018-08-11	Joss	NF-PM1	B1=600000, B2=6000000, E=6
2018-06-09	kkmrkkblmbrbk	C-LL	12639AD4DEE06C51
2017-08-08	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
2015-11-08	ramgeis	NF	no factor from 2^65 to 2^66
2015-02-23	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-23	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-11-10	lycorn	NF	no factor from 2^62 to 2^63
2012-06-15	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-04-07	James Heinrich	NF-PM1	B1=300000, B2=8000000, E=12
2011-01-07	Joss	NF-PM1	B1=50000
2011-01-02	Joss	NF-PM1	B1=30000
2010-12-19	Joss	NF-PM1	B1=20000
2009-01-27	Sturle Sunde	NF	no factor from 2^60 to 2^61