1 119 907 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
431439029553759955817	21	68.5	2017-06-02 12:29:40

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	100 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	90C	0
Verified (Factored)		Eric Hamilton	EC9F98FBD9C4090C	0
Verified (Factored)		John R Pierce	EC9F98FBD9C4090C	0
Verified (Factored)	2001-12-01	Matt Horbal	EC9F98FBD9C4090C	964855
Verified (Factored)	2016-06-01	MadPoo	EC9F98FBD9C4090C	735175

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-29	Oliver Kruse	A8B982F9FA85EC09	1	0	1	3
Verified	2017-10-16	Oliver Kruse	A8B982F9FA85EC09	1	75678	1	3
Verified	2018-01-04	ATH	A8B982F9FA85EC09	1	964524	1	3

History

Date	User	Type	Result
2018-01-04	ATH	C-PRP	M1119907/431439029553759955817 : A8B982F9FA85EC09 PRP: Verified PRP without proof (not generated)
2017-10-16	Oliver Kruse	C-PRP	M1119907/431439029553759955817 : A8B982F9FA85EC09 PRP: Verified PRP without proof (not generated)
2017-09-29	Oliver Kruse	C-PRP	M1119907/431439029553759955817 : A8B982F9FA85EC09 PRP: Verified PRP without proof (not generated)
2017-06-02	TJAOI	F-ECM	Factor: 431439029553759955817 / (ECM curve 3, B1=50000, B2=5000000)
2016-06-01	MadPoo	C-LL	EC9F98FBD9C4090C
2016-02-23	Mark Rose	NF	no factor from 2^57 to 2^60
2015-03-18	mikr	NF-PM1	B1=5000000, B2=200000000, E=12
2014-04-01	Never Odd Or Even	NF	no factor from 2^70 to 2^71
2014-02-22	Never Odd Or Even	NF	no factor from 2^69 to 2^70
2014-02-22	Never Odd Or Even	NF	no factor from 2^68 to 2^69
2014-02-22	Never Odd Or Even	NF	no factor from 2^67 to 2^68
2014-02-22	Never Odd Or Even	NF	no factor from 2^66 to 2^67
2014-02-22	Never Odd Or Even	NF	no factor from 2^65 to 2^66
2013-10-16	David Campeau	NF	no factor from 2^64 to 2^65
2012-11-02	kurly	NF-PM1	B1=500000, B2=10000000, E=12
2011-09-26	Bdot	NF	no factor from 2^61 to 2^64
2009-02-19	Sturle Sunde	NF	no factor from 2^60 to 2^61