7 788 353 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
594239166714813390809	21	69.0	2018-07-21 10:06:45

ECM

Digits	B1	Curves
25	50000	5 / 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)	1999-10-07	Ars Technica Team Prime Rib	2BDF94506183DAE0	2247261
Verified (Factored)	2002-05-05	Marc Getty / Phil Fizur	2BDF94506183DAE0	6349214

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-07-22	_p95holder_	50B6B6ED06267245	1	3107395	5	3
Verified	2019-10-02	marssystems	50B6B6ED06267245	1	6518822	5	3

History

Date	User	Type	Result
2019-10-02	marssystems	C-PRP	M7788353/594239166714813390809 : 50B6B6ED06267245 PRP: Verified PRP without proof (not generated)
2018-07-29	ramgeis	NF	no factor from 2^67 to 2^68
2018-07-22	_p95holder_	C-PRP	M7788353/594239166714813390809 : 50B6B6ED06267245 PRP: Verified PRP without proof (not generated)
2018-07-21	arnaud	F-ECM	Factor: 594239166714813390809 / (ECM curve 2, B1=50000, B2=5000000)
2016-09-10	Gordon Spence	NF	no factor from 2^66 to 2^67
2015-06-09	VictordeHollander	NF	no factor from 2^65 to 2^66
2013-12-14	David Campeau	NF	no factor from 2^64 to 2^65
2013-10-08	Nesowa	NF	no factor from 2^63 to 2^64
2012-08-29	Nesowa	NF-PM1	B1=95000, B2=1876250, E=6