2 910 133 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
165607981455833948783599	24	77.1	2015-12-23 07:17:42

ECM

Digits	B1	Curves
25	50000	12 / 280

Estimated T-Level: 20.2 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Richard E. Hautala	6D936B5A832E7096	0
Verified (Factored)	1999-05-23	Dustin Rodriguez	6D936B5A832E7096	2488979

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-30	alpertron	28CE5096D57B7D0B	1	0	1	3
Verified	2017-11-18	Oliver Kruse	28CE5096D57B7D0B	1	353226	1	3

History

Date	User	Type	Result
2017-11-18	Oliver Kruse	C-PRP	M2910133/165607981455833948783599 : 28CE5096D57B7D0B PRP: Verified PRP without proof (not generated)
2017-09-30	alpertron	C-PRP	M2910133/165607981455833948783599 : 28CE5096D57B7D0B PRP: Verified PRP without proof (not generated)
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2015-12-23	bam	F-ECM	Factor: 165607981455833948783599 / (ECM curve 3, B1=50000, B2=5000000)
2015-04-25	VictordeHollander	NF-PM1	B1=1000000, B2=20000000, E=12
2015-04-25	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-25	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-10	dbaugh	NF	no factor from 2^62 to 2^63
2011-12-15	Grant McCracken	NF	no factor from 2^61 to 2^62
2011-01-27	markr	NF-PM1	B1=105000, B2=2283750, E=6
2010-12-24	Joss	NF-PM1	B1=20000
2009-07-03	Carsten Kossendey	NF-PM1	B1=15000, B2=168750
2009-02-14	Sturle Sunde	NF	no factor from 2^60 to 2^61