1 974 229 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
329673272684681056371529	24	78.1	2018-02-02 01:59:15

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	58 / 640

Estimated T-Level: 25.5 ⓘ

TF below 2^80 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Daniel Brockhaus	3907DAB6BA1CE366	0
Verified (Factored)	1999-01-17	Chuck White	3907DAB6BA1CE366	1216087
Verified (Factored)	2015-07-12	MadPoo	3907DAB6BA1CE366	736189

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-02-02	MaximeG	721E982C959114AA	1	1897524	5	3
Verified	2018-02-07	Oliver Kruse	721E982C959114AA	1	1053791	5	3

History

Date	User	Type	Result
2018-02-07	Oliver Kruse	C-PRP	M1974229/329673272684681056371529 : 721E982C959114AA PRP: Verified PRP without proof (not generated)
2018-02-02	MaximeG	C-PRP	M1974229/329673272684681056371529 : 721E982C959114AA PRP: Verified PRP without proof (not generated)
2018-02-02	bam	F-ECM	Factor: 329673272684681056371529 / (ECM curve 3, B1=50000, B2=5000000)
2018-01-20	Joss	NF-PM1	B1=1974229, B2=30000000, E=12
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2016-02-23	Mark Rose	NF	no factor from 2^61 to 2^62
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-09-10	ramgeis	NF	no factor from 2^65 to 2^66
2015-07-12	MadPoo	C-LL	3907DAB6BA1CE366
2015-03-19	lycorn	NF	no factor from 2^64 to 2^65
2015-03-19	lycorn	NF	no factor from 2^63 to 2^64
2011-08-27	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-03-18	kurly	NF-PM1	B1=1000000, B2=30000000, E=12
2009-12-28	S485122	NF	no factor from 2^60 to 2^61